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[Search a list of Patent Appplications for class 363]  Class   363ELECTRIC POWER CONVERSION SYSTEMS
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[List of Patents for class 363 subclass 1]  1           CASCADED OR COMBINED, DIVERSE CONVERSIONS IN WHICH THE FREQUENCY OR PHASE OR COMBINED CONVERSION IS WITHOUT INTERMEDIATE CONVERSION TO D.C.
[List of Patents for class 363 subclass 2]  2           Subclass 2 indent level is 1 Current and phase (e.g., D.C.-Ph1-Ph2)
[List of Patents for class 363 subclass 3]  3           Subclass 3 indent level is 2 Phase 1 to phase 2 to D.C.
[List of Patents for class 363 subclass 4]  4           Subclass 4 indent level is 3 Single phase to polyphase to D.C.
[List of Patents for class 363 subclass 5]  5           Subclass 5 indent level is 3 With interphase transformer
[List of Patents for class 363 subclass 6]  6           Subclass 6 indent level is 4 Including plural anode/single cathode device
[List of Patents for class 363 subclass 7]  7           Subclass 7 indent level is 3 With dynamic rectifier in phase 2 to D.C. stage (e.g., commutator type)
[List of Patents for class 363 subclass 8]  8           Subclass 8 indent level is 1 Current and frequency (e.g., f1-f2-D.C.)
[List of Patents for class 363 subclass 9]  9           Subclass 9 indent level is 1 Combined phase and frequency conversion (i.e., Ph1f1-Ph2f2)
[List of Patents for class 363 subclass 10]  10           Subclass 10 indent level is 2 By semiconductor device converter
[List of Patents for class 363 subclass 11]  11           Subclass 11 indent level is 2 By electron tube converter
[List of Patents for class 363 subclass 12]  12           Subclass 12 indent level is 2 By saturable reactor converter
[List of Patents for class 363 subclass 13]  13           CURRENT CONVERSION
[List of Patents for class 363 subclass 14]  14           Subclass 14 indent level is 1 Cryogenic
[List of Patents for class 363 subclass 15]  15           Subclass 15 indent level is 1 Including D.C.-A.C.-D.C. converter
[List of Patents for class 363 subclass 16]  16           Subclass 16 indent level is 2 Having transistorized inverter
[List of Patents for class 363 subclass 17]  17           Subclass 17 indent level is 3 Bridge type
[List of Patents for class 363 subclass 18]  18           Subclass 18 indent level is 3 Single-ended, self-oscillating type
[List of Patents for class 363 subclass 19]  19           Subclass 19 indent level is 4 With automatic control of the magnitude of output voltage or current
[List of Patents for class 363 subclass 20]  20           Subclass 20 indent level is 3 Single-ended, separately-driven type
[List of Patents for class 363 subclass 21.01]  21.01           Subclass 21.01 indent level is 4 With automatic control of the magnitude of output voltage or current
[List of Patents for class 363 subclass 21.02]  21.02           Subclass 21.02 indent level is 5 For resonant-type converter
[List of Patents for class 363 subclass 21.03]  21.03           Subclass 21.03 indent level is 6 Having particular zero-switching control circuit (e.g., for quasi-resonant converter, etc.)
[List of Patents for class 363 subclass 21.04]  21.04           Subclass 21.04 indent level is 5 For forward-type converter
[List of Patents for class 363 subclass 21.05]  21.05           Subclass 21.05 indent level is 6 Having digital logic
[List of Patents for class 363 subclass 21.06]  21.06           Subclass 21.06 indent level is 6 Having synchronous rectifier
[List of Patents for class 363 subclass 21.07]  21.07           Subclass 21.07 indent level is 6 Having feedback isolation (e.g., optoisolator, transformer coupled, etc.)
[List of Patents for class 363 subclass 21.08]  21.08           Subclass 21.08 indent level is 6 Having feedback winding inductively coupled to inverter inductive device (e.g., tertiary winding, etc.)
[List of Patents for class 363 subclass 21.09]  21.09           Subclass 21.09 indent level is 6 Having output current feedback
[List of Patents for class 363 subclass 21.1]  21.1           Subclass 21.1 indent level is 6 Utilizing pulse-width modulation
[List of Patents for class 363 subclass 21.11]  21.11           Subclass 21.11 indent level is 7 Having particular pulse-width modulation circuit
[List of Patents for class 363 subclass 21.12]  21.12           Subclass 21.12 indent level is 5 For flyback-type converter
[List of Patents for class 363 subclass 21.13]  21.13           Subclass 21.13 indent level is 6 Having digital logic
[List of Patents for class 363 subclass 21.14]  21.14           Subclass 21.14 indent level is 6 Having synchronous rectifier
[List of Patents for class 363 subclass 21.15]  21.15           Subclass 21.15 indent level is 6 Having feedback isolation (e.g., optoisolator, transformer coupled, etc.)
[List of Patents for class 363 subclass 21.16]  21.16           Subclass 21.16 indent level is 6 Having feedback winding inductively coupled to inverter inductive device (e.g., tertiary winding, etc.)
[List of Patents for class 363 subclass 21.17]  21.17           Subclass 21.17 indent level is 6 Having output current feedback
[List of Patents for class 363 subclass 21.18]  21.18           Subclass 21.18 indent level is 6 Utilizing pulse-width modulation
[List of Patents for class 363 subclass 22]  22           Subclass 22 indent level is 3 Double-ended (i.e., push-pull), self-oscillating type
[List of Patents for class 363 subclass 23]  23           Subclass 23 indent level is 4 With automatic control of the magnitude of output voltage or current
[List of Patents for class 363 subclass 24]  24           Subclass 24 indent level is 3 Double-ended (i.e., push-pull), separately-driven type
[List of Patents for class 363 subclass 25]  25           Subclass 25 indent level is 4 With automatic control of the magnitude of output voltage or current
[List of Patents for class 363 subclass 26]  26           Subclass 26 indent level is 5 Utilizing pulse-width modulation
[List of Patents for class 363 subclass 27]  27           Subclass 27 indent level is 2 Having thyristor inverter (e.g., SCR, etc.)
[List of Patents for class 363 subclass 28]  28           Subclass 28 indent level is 3 With automatic control of the magnitude of output voltage or current
[List of Patents for class 363 subclass 29]  29           Subclass 29 indent level is 2 Having electron-tube inverter
[List of Patents for class 363 subclass 30]  30           Subclass 30 indent level is 3 Single-ended type
[List of Patents for class 363 subclass 31]  31           Subclass 31 indent level is 3 Double-ended type (i.e., push-pull)
[List of Patents for class 363 subclass 32]  32           Subclass 32 indent level is 2 Rotary-commutator-type inverter
[List of Patents for class 363 subclass 33]  33           Subclass 33 indent level is 2 Vibrator-type inverter
[List of Patents for class 363 subclass 34]  34           Subclass 34 indent level is 1 Including an A.C.-D.C.-A.C. converter
[List of Patents for class 363 subclass 35]  35           Subclass 35 indent level is 2 For transfer of power via a high voltage D.C. link (i.e., HVDC transmission system)
[List of Patents for class 363 subclass 36]  36           Subclass 36 indent level is 2 For change of phase (e.g., number of phases)
[List of Patents for class 363 subclass 37]  37           Subclass 37 indent level is 2 By semiconductor rectifier and inverter
[List of Patents for class 363 subclass 38]  38           Subclass 38 indent level is 2 By electron tube rectifier and inverter
[List of Patents for class 363 subclass 39]  39           Subclass 39 indent level is 1 With means to introduce or eliminate frequency components
[List of Patents for class 363 subclass 40]  40           Subclass 40 indent level is 2 In inverter systems
[List of Patents for class 363 subclass 41]  41           Subclass 41 indent level is 3 By pulse modulation technique (e.g., PWM, PPM, etc.)
[List of Patents for class 363 subclass 42]  42           Subclass 42 indent level is 4 Including notching
[List of Patents for class 363 subclass 43]  43           Subclass 43 indent level is 3 By step-wave, amplitude summation technique
[List of Patents for class 363 subclass 44]  44           Subclass 44 indent level is 2 In rectifier systems
[List of Patents for class 363 subclass 45]  45           Subclass 45 indent level is 3 Including means for reducing ripples from the output
[List of Patents for class 363 subclass 46]  46           Subclass 46 indent level is 4 With ripple responsive, automatic control
[List of Patents for class 363 subclass 47]  47           Subclass 47 indent level is 4 With low pass L or LC filter
[List of Patents for class 363 subclass 48]  48           Subclass 48 indent level is 5 For semiconductor rectifier
[List of Patents for class 363 subclass 49]  49           Subclass 49 indent level is 1 With starting arrangement
[List of Patents for class 363 subclass 50]  50           Subclass 50 indent level is 1 Including automatic or integral protection means
[List of Patents for class 363 subclass 51]  51           Subclass 51 indent level is 2 For high voltage D.C. transmission systems
[List of Patents for class 363 subclass 52]  52           Subclass 52 indent level is 2 For rectifiers
[List of Patents for class 363 subclass 53]  53           Subclass 53 indent level is 3 Semiconductor type
[List of Patents for class 363 subclass 54]  54           Subclass 54 indent level is 4 Thyristor
[List of Patents for class 363 subclass 55]  55           Subclass 55 indent level is 2 For inverters
[List of Patents for class 363 subclass 56.01]  56.01           Subclass 56.01 indent level is 3 Transistor inverter
[List of Patents for class 363 subclass 56.02]  56.02           Subclass 56.02 indent level is 4 Bridge type
[List of Patents for class 363 subclass 56.03]  56.03           Subclass 56.03 indent level is 5 Having current protection (e.g., over current, short, etc.)
[List of Patents for class 363 subclass 56.04]  56.04           Subclass 56.04 indent level is 6 Including short protection across a series-connected pair of transistors (e.g., shoot-through protection, etc.)
[List of Patents for class 363 subclass 56.05]  56.05           Subclass 56.05 indent level is 5 Having voltage protection
[List of Patents for class 363 subclass 56.06]  56.06           Subclass 56.06 indent level is 4 Double-ended type
[List of Patents for class 363 subclass 56.07]  56.07           Subclass 56.07 indent level is 5 Having current protection
[List of Patents for class 363 subclass 56.08]  56.08           Subclass 56.08 indent level is 5 Having voltage protection
[List of Patents for class 363 subclass 56.09]  56.09           Subclass 56.09 indent level is 4 Single-ended type
[List of Patents for class 363 subclass 56.1]  56.1           Subclass 56.1 indent level is 5 Having current protection
[List of Patents for class 363 subclass 56.11]  56.11           Subclass 56.11 indent level is 5 Having voltage protection
[List of Patents for class 363 subclass 56.12]  56.12           Subclass 56.12 indent level is 4 Transient protection (e.g., snubber, etc.)
[List of Patents for class 363 subclass 57]  57           Subclass 57 indent level is 3 Thyristor inverter
[List of Patents for class 363 subclass 58]  58           Subclass 58 indent level is 4 Bridge type
[List of Patents for class 363 subclass 59]  59           Subclass 59 indent level is 1 With voltage multiplication means (i.e., V out > V in)
[List of Patents for class 363 subclass 60]  60           Subclass 60 indent level is 2 Including semiconductor means
[List of Patents for class 363 subclass 61]  61           Subclass 61 indent level is 3 For rectifying
[List of Patents for class 363 subclass 62]  62           Subclass 62 indent level is 1 With voltage division by storage type impedance (i.e., V out)
[List of Patents for class 363 subclass 63]  63           Subclass 63 indent level is 1 With means to selectively provide D.C. of either polarity
[List of Patents for class 363 subclass 64]  64           Subclass 64 indent level is 1 With interphase transformer
[List of Patents for class 363 subclass 65]  65           Subclass 65 indent level is 1 Having plural converters for single conversion
[List of Patents for class 363 subclass 66]  66           Subclass 66 indent level is 2 Including plural anodes and single cathode (e.g., vapor arc device)
[List of Patents for class 363 subclass 67]  67           Subclass 67 indent level is 2 Plural rectifiers
[List of Patents for class 363 subclass 68]  68           Subclass 68 indent level is 3 In series (e.g., series SCR's, bridge circuits, etc.)
[List of Patents for class 363 subclass 69]  69           Subclass 69 indent level is 3 In parallel
[List of Patents for class 363 subclass 70]  70           Subclass 70 indent level is 4 Including semiconductor device
[List of Patents for class 363 subclass 71]  71           Subclass 71 indent level is 2 Plural inverters
[List of Patents for class 363 subclass 72]  72           Subclass 72 indent level is 3 Master-slave
[List of Patents for class 363 subclass 73]  73           Subclass 73 indent level is 1 Constant current to constant voltage or vice versa
[List of Patents for class 363 subclass 74]  74           Subclass 74 indent level is 1 With condition responsive means to control the output voltage or current
[List of Patents for class 363 subclass 75]  75           Subclass 75 indent level is 2 Including inductive integral sensing and control means (e.g., ferroresonant circuit)
[List of Patents for class 363 subclass 76]  76           Subclass 76 indent level is 2 Including integral sensing and control means for rectifier
[List of Patents for class 363 subclass 77]  77           Subclass 77 indent level is 3 With semiconductor conversion means
[List of Patents for class 363 subclass 78]  78           Subclass 78 indent level is 2 Cooperating separate sensing and control means
[List of Patents for class 363 subclass 79]  79           Subclass 79 indent level is 3 Including plural sensing or control means
[List of Patents for class 363 subclass 80]  80           Subclass 80 indent level is 4 With transistor as control means in the line circuit
[List of Patents for class 363 subclass 81]  81           Subclass 81 indent level is 4 By rectifier
[List of Patents for class 363 subclass 82]  82           Subclass 82 indent level is 5 With inductive control means in the line circuit
[List of Patents for class 363 subclass 83]  83           Subclass 83 indent level is 5 With electron tube or valve as control means in the line circuit
[List of Patents for class 363 subclass 84]  84           Subclass 84 indent level is 3 For rectifier system
[List of Patents for class 363 subclass 85]  85           Subclass 85 indent level is 4 With thyristor control means in the line circuit
[List of Patents for class 363 subclass 86]  86           Subclass 86 indent level is 5 External to rectifier (e.g., pre or post regulation)
[List of Patents for class 363 subclass 87]  87           Subclass 87 indent level is 5 For plural phase to D.C. rectifier
[List of Patents for class 363 subclass 88]  88           Subclass 88 indent level is 5 For full wave rectifier with at least 1 three electrode device
[List of Patents for class 363 subclass 89]  89           Subclass 89 indent level is 4 With transistor control means in the line circuit
[List of Patents for class 363 subclass 90]  90           Subclass 90 indent level is 4 With inductive control means in the line circuit
[List of Patents for class 363 subclass 91]  91           Subclass 91 indent level is 5 Saturable reactor (e.g., magnetic amplifier)
[List of Patents for class 363 subclass 92]  92           Subclass 92 indent level is 6 In plural phase to D.C. system
[List of Patents for class 363 subclass 93]  93           Subclass 93 indent level is 6 With plural control windings
[List of Patents for class 363 subclass 94]  94           Subclass 94 indent level is 4 With electron tube or valve control means in the line circuit
[List of Patents for class 363 subclass 95]  95           Subclass 95 indent level is 3 For inverter
[List of Patents for class 363 subclass 96]  96           Subclass 96 indent level is 4 With thyristor control means in the line circuit
[List of Patents for class 363 subclass 97]  97           Subclass 97 indent level is 4 With transistor control means in the line circuit
[List of Patents for class 363 subclass 98]  98           Subclass 98 indent level is 5 For bridge-type inverter
[List of Patents for class 363 subclass 99]  99           Subclass 99 indent level is 4 With electron tube or valve control means in the line circuit
[List of Patents for class 363 subclass 100]  100           Subclass 100 indent level is 1 With manual control of the output voltage or current
[List of Patents for class 363 subclass 101]  101           Subclass 101 indent level is 1 With auxiliary bucking or boosting EMF
[List of Patents for class 363 subclass 102]  102           Subclass 102 indent level is 1 Using dynamoelectric machine converter
[List of Patents for class 363 subclass 103]  103           Subclass 103 indent level is 2 Plural collector type
[List of Patents for class 363 subclass 104]  104           Subclass 104 indent level is 3 Having plural field windings
[List of Patents for class 363 subclass 105]  105           Subclass 105 indent level is 3 Having auxiliary motor drive
[List of Patents for class 363 subclass 106]  106           Subclass 106 indent level is 1 By circuit interrupter type
[List of Patents for class 363 subclass 107]  107           Subclass 107 indent level is 2 Rotating
[List of Patents for class 363 subclass 108]  108           Subclass 108 indent level is 3 Rectifier (i.e., A.C.-D.C.)
[List of Patents for class 363 subclass 109]  109           Subclass 109 indent level is 3 Inverter (i.e., D.C.-A.C.)
[List of Patents for class 363 subclass 110]  110           Subclass 110 indent level is 2 Vibrating
[List of Patents for class 363 subclass 111]  111           Subclass 111 indent level is 1 Using electronic tube converter
[List of Patents for class 363 subclass 112]  112           Subclass 112 indent level is 2 With gap in open atmosphere
[List of Patents for class 363 subclass 113]  113           Subclass 113 indent level is 2 With cathode element control
[List of Patents for class 363 subclass 114]  114           Subclass 114 indent level is 2 In rectifier systems
[List of Patents for class 363 subclass 115]  115           Subclass 115 indent level is 3 With retarding or delaying control means
[List of Patents for class 363 subclass 116]  116           Subclass 116 indent level is 3 With discharge control means (e.g., grid)
[List of Patents for class 363 subclass 117]  117           Subclass 117 indent level is 4 D.C. bias control
[List of Patents for class 363 subclass 118]  118           Subclass 118 indent level is 4 Phase angle control
[List of Patents for class 363 subclass 119]  119           Subclass 119 indent level is 4 Particular waveform grid excitation
[List of Patents for class 363 subclass 120]  120           Subclass 120 indent level is 2 In inverter systems
[List of Patents for class 363 subclass 121]  121           Subclass 121 indent level is 3 With discharge control means (e.g., grid)
[List of Patents for class 363 subclass 122]  122           Subclass 122 indent level is 4 Grid-like electrode
[List of Patents for class 363 subclass 123]  123           Subclass 123 indent level is 1 Using semiconductor-type converter
[List of Patents for class 363 subclass 124]  124           Subclass 124 indent level is 2 In chopper converter systems
[List of Patents for class 363 subclass 125]  125           Subclass 125 indent level is 2 In rectifier systems
[List of Patents for class 363 subclass 126]  126           Subclass 126 indent level is 3 Diode
[List of Patents for class 363 subclass 127]  127           Subclass 127 indent level is 3 Transistor
[List of Patents for class 363 subclass 128]  128           Subclass 128 indent level is 3 Thyristor
[List of Patents for class 363 subclass 129]  129           Subclass 129 indent level is 4 Plural phase to D.C.
[List of Patents for class 363 subclass 130]  130           Subclass 130 indent level is 4 With magnetic control means
[List of Patents for class 363 subclass 131]  131           Subclass 131 indent level is 2 In transistor inverter systems
[List of Patents for class 363 subclass 132]  132           Subclass 132 indent level is 3 Bridge type
[List of Patents for class 363 subclass 133]  133           Subclass 133 indent level is 3 Double ended (i.e., push-pull) type
[List of Patents for class 363 subclass 134]  134           Subclass 134 indent level is 4 Separately driven
[List of Patents for class 363 subclass 135]  135           Subclass 135 indent level is 2 In thyristor inverter systems
[List of Patents for class 363 subclass 136]  136           Subclass 136 indent level is 3 Bridge type
[List of Patents for class 363 subclass 137]  137           Subclass 137 indent level is 4 D.C. to plural phase
[List of Patents for class 363 subclass 138]  138           Subclass 138 indent level is 5 With commutation means
[List of Patents for class 363 subclass 139]  139           Subclass 139 indent level is 3 Double ended (i.e., push-pull) type
[List of Patents for class 363 subclass 140]  140           Subclass 140 indent level is 1 Using impedance-type converter
[List of Patents for class 363 subclass 141]  141           Subclass 141 indent level is 1 With cooling means
[List of Patents for class 363 subclass 142]  142           Subclass 142 indent level is 1 With means to connect the input to diverse power sources
[List of Patents for class 363 subclass 143]  143           Subclass 143 indent level is 2 110/220 Volts A.C. in, constant 110 Volts D.C. out
[List of Patents for class 363 subclass 144]  144           Subclass 144 indent level is 1 With conductive support mounting
[List of Patents for class 363 subclass 145]  145           Subclass 145 indent level is 2 Adapted for use with alternators
[List of Patents for class 363 subclass 146]  146           Subclass 146 indent level is 1 Encased in plug housing
[List of Patents for class 363 subclass 147]  147           Subclass 147 indent level is 1 Integrated circuit
[List of Patents for class 363 subclass 148]  148           PHASE CONVERSION (PH1-PH2) WITHOUT INTERMEDIATE CONVERSION TO D.C.
[List of Patents for class 363 subclass 149]  149           Subclass 149 indent level is 1 With automatic voltage magnitude or phase angle control
[List of Patents for class 363 subclass 150]  150           Subclass 150 indent level is 1 By dynamoelectric machine converter
[List of Patents for class 363 subclass 151]  151           Subclass 151 indent level is 1 By electron tube converter
[List of Patents for class 363 subclass 152]  152           Subclass 152 indent level is 1 By induction-type converter
[List of Patents for class 363 subclass 153]  153           Subclass 153 indent level is 2 Transformer type
[List of Patents for class 363 subclass 154]  154           Subclass 154 indent level is 3 Stationary
[List of Patents for class 363 subclass 155]  155           Subclass 155 indent level is 4 With passive phase shift element
[List of Patents for class 363 subclass 156]  156           Subclass 156 indent level is 1 By passive phase shift elements
[List of Patents for class 363 subclass 157]  157           FREQUENCY CONVERSION (F1-F2) WITHOUT INTERMEDIATE CONVERSION TO D.C.
[List of Patents for class 363 subclass 158]  158           Subclass 158 indent level is 1 By varactor
[List of Patents for class 363 subclass 159]  159           Subclass 159 indent level is 1 By semiconductor converter
[List of Patents for class 363 subclass 160]  160           Subclass 160 indent level is 2 Thyristor type
[List of Patents for class 363 subclass 161]  161           Subclass 161 indent level is 3 Positive and negative groups
[List of Patents for class 363 subclass 162]  162           Subclass 162 indent level is 4 Including blanking or inhibiting means
[List of Patents for class 363 subclass 163]  163           Subclass 163 indent level is 2 Transistor type
[List of Patents for class 363 subclass 164]  164           Subclass 164 indent level is 1 With automatic voltage magnitude control
[List of Patents for class 363 subclass 165]  165           Subclass 165 indent level is 1 With automatic frequency control
[List of Patents for class 363 subclass 166]  166           Subclass 166 indent level is 1 By electron tube converter
[List of Patents for class 363 subclass 167]  167           Subclass 167 indent level is 2 With discharge control means
[List of Patents for class 363 subclass 168]  168           Subclass 168 indent level is 3 Including plural anodes and single cathode device (e.g., vapor arc device)
[List of Patents for class 363 subclass 169]  169           Subclass 169 indent level is 3 Thyratron type
[List of Patents for class 363 subclass 170]  170           Subclass 170 indent level is 1 By induction-type converter
[List of Patents for class 363 subclass 171]  171           Subclass 171 indent level is 2 Transformer
[List of Patents for class 363 subclass 172]  172           Subclass 172 indent level is 3 Saturable core
[List of Patents for class 363 subclass 173]  173           Subclass 173 indent level is 2 LC circuit
[List of Patents for class 363 subclass 174]  174           Subclass 174 indent level is 2 Dynamoelectric machine
[List of Patents for class 363 subclass 175]  175           Subclass 175 indent level is 3 Motor generator type
[List of Patents for class 363 subclass 176]  176           Subclass 176 indent level is 3 Including induction motor
[List of Patents for class 363 subclass 177]  177           Subclass 177 indent level is 1 By circuit interrupter converter
[List of Patents for class 363 subclass 178]  178           MISCELLANEOUS
 
FOREIGN ART COLLECTIONS
 
   FOR000          CLASS-RELATED FOREIGN DOCUMENTS
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.
              CURRENT CONVERSION
              Subclass indent level is 1 Cryogenic
              Subclass indent level is 2 Including D.C.- A.C.- D.C. converter
              Subclass indent level is 3 Bridge type
   FOR100          Subclass FOR100 indent level is 4 With automatic control of the magnitude of the output voltage or current (363/21)
   FOR101          Subclass FOR101 indent level is 3 Semiconductor type (363/56)

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