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Class Information
Number:
290/4F
Name:
Prime-mover dynamo plants
>
Description:
Sub-classes under this class:
Class Number
Class Name
Patents
290/1R
Miscellaneous
808
290/2
Heating plants
194
290/3
Train
31
290/45
Traction
116
290/46
Starting and generating dynamo
132
290/47
Electric-starting motor with generator
25
290/48
Electric-starting motor
172
290/49
Rotary field and armature
13
290/4R
Plural prime mover
144
290/5
Alternating current, rotary field and armature
14
290/50
Battery
54
290/51
Engine control
53
290/52
Turbogenerators
610
290/53
Tide and wave motors
624
290/54
Fluid-current motors
812
290/6
Multiple-armature dynamo
29
290/7
Electric control
50
Patents under this class:
Patent Number
Title Of Patent
Date Issued
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