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

Sub-classes under this class:

Class Number Class Name Patents
290/1R Miscellaneous 864
290/2 Heating plants 202
290/3 Train 32
290/45 Traction 119
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 14
290/50 Battery 57
290/51 Engine control 54
290/52 Turbogenerators 641
290/53 Tide and wave motors 679
290/54 Fluid-current motors 885
290/6 Multiple-armature dynamo 29
290/7 Electric control 53

Patents under this class:

Patent Number Title Of Patent Date Issued

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