US PATENT SUBCLASS 290 / 39
.~ Rotary field and armature

Current as of: June, 1999
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290 /   HD   PRIME-MOVER DYNAMO PLANTS

7  DF  ELECTRIC CONTROL {10}
39.~ Rotary field and armature

DEFINITION

Classification: 290/39

Electric-control prime-mover dynamo plants including a dynamo electric machine having a field and armature, both of which rotate.