US PATENT SUBCLASS 340 / 648
.~.~.~ Motor

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
635  DF  .~.~ Condition of electrical apparatus {15}
648.~.~.~ Motor

DEFINITION

Classification: 340/648

Motor:

(under subclass 635) Subject matter where the monitored device is an electric motor.

SEE OR SEARCH CLASS

318, Electricity: Motive Power Systems,

490, for similar subject matter combined with motor control systems.