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Class Information
Number: 290/74
Name: Prime-mover dynamo plants >
Description:










Sub-classes under this class:

Class Number Class Name Patents
290/1R Miscellaneous 899
290/2 Heating plants 204
290/3 Train 32
290/45 Traction 121
290/46 Starting and generating dynamo 134
290/47 Electric-starting motor with generator 28
290/48 Electric-starting motor 175
290/49 Rotary field and armature 13
290/4R Plural prime mover 148
290/5 Alternating current, rotary field and armature 15
290/50 Battery 57
290/51 Engine control 54
290/52 Turbogenerators 643
290/53 Tide and wave motors 701
290/54 Fluid-current motors 911
290/6 Multiple-armature dynamo 30
290/7 Electric control 56


Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
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