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Classification Resources
 
Class   290PRIME-MOVER DYNAMO PLANTS
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[List of Pre Grant Publications for class 290 subclass 1R][List of Patents for class 290 subclass 1R]  1R MISCELLANEOUS
 [List of Pre Grant Publications for class 290 subclass 2][List of Patents for class 290 subclass 2]2 HEATING PLANTS
 [List of Pre Grant Publications for class 290 subclass 3][List of Patents for class 290 subclass 3]3 TRAIN
[List of Pre Grant Publications for class 290 subclass 4R][List of Patents for class 290 subclass 4R]  4R PLURAL PRIME MOVER
 [List of Pre Grant Publications for class 290 subclass 5][List of Patents for class 290 subclass 5]5 ALTERNATING CURRENT, ROTARY FIELD AND ARMATURE
 [List of Pre Grant Publications for class 290 subclass 6][List of Patents for class 290 subclass 6]6 MULTIPLE-ARMATURE DYNAMO
[List of Pre Grant Publications for class 290 subclass 7][List of Patents for class 290 subclass 7]7 ELECTRIC CONTROL
 [List of Pre Grant Publications for class 290 subclass 8][List of Patents for class 290 subclass 8]8 Subclass 8 indent level is 1 Excitation dynamo
     Subclass  indent level is 1 Traction
[List of Pre Grant Publications for class 290 subclass 30R][List of Patents for class 290 subclass 30R]  30R Subclass 30R indent level is 1 Demand starters
[List of Pre Grant Publications for class 290 subclass 31][List of Patents for class 290 subclass 31]31 Subclass 31 indent level is 1 Starting and generating dynamo
[List of Pre Grant Publications for class 290 subclass 36R][List of Patents for class 290 subclass 36R]  36R Subclass 36R indent level is 1 Electric-starting motor with generator
[List of Pre Grant Publications for class 290 subclass 38R][List of Patents for class 290 subclass 38R]  38R Subclass 38R indent level is 1 Electric-starting motor
 [List of Pre Grant Publications for class 290 subclass 39][List of Patents for class 290 subclass 39]39 Subclass 39 indent level is 1 Rotary field and armature
[List of Pre Grant Publications for class 290 subclass 40R][List of Patents for class 290 subclass 40R]  40R Subclass 40R indent level is 1 Engine control
 [List of Pre Grant Publications for class 290 subclass 42][List of Patents for class 290 subclass 42]42 Subclass 42 indent level is 1 Tide and wave motors
[List of Pre Grant Publications for class 290 subclass 43][List of Patents for class 290 subclass 43]43 Subclass 43 indent level is 1 Fluid-current motors
 [List of Pre Grant Publications for class 290 subclass 45][List of Patents for class 290 subclass 45]45 TRACTION
 [List of Pre Grant Publications for class 290 subclass 46][List of Patents for class 290 subclass 46]46 STARTING AND GENERATING DYNAMO
 [List of Pre Grant Publications for class 290 subclass 47][List of Patents for class 290 subclass 47]47 ELECTRIC-STARTING MOTOR WITH GENERATOR
 [List of Pre Grant Publications for class 290 subclass 48][List of Patents for class 290 subclass 48]48 ELECTRIC-STARTING MOTOR
 [List of Pre Grant Publications for class 290 subclass 49][List of Patents for class 290 subclass 49]49 ROTARY FIELD AND ARMATURE
 [List of Pre Grant Publications for class 290 subclass 50][List of Patents for class 290 subclass 50]50 BATTERY
 [List of Pre Grant Publications for class 290 subclass 51][List of Patents for class 290 subclass 51]51 ENGINE CONTROL
 [List of Pre Grant Publications for class 290 subclass 52][List of Patents for class 290 subclass 52]52 TURBOGENERATORS
 [List of Pre Grant Publications for class 290 subclass 53][List of Patents for class 290 subclass 53]53 TIDE AND WAVE MOTORS
[List of Pre Grant Publications for class 290 subclass 54][List of Patents for class 290 subclass 54]54 FLUID-CURRENT MOTORS
 
FOREIGN ART COLLECTIONS
 
      FOR000          CLASS-RELATED FOREIGN DOCUMENTS