US PATENT SUBCLASS 73 / 658
.~.~ With electrically controlled indicator

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

570  DF  VIBRATION {10}
649  DF  .~ Sensing apparatus {5}
658.~.~ With electrically controlled indicator {3}
659  DF  .~.~.~> Spectrum analysis
660  DF  .~.~.~> Rotating machinery or device
661  DF  .~.~.~> Having a probe

DEFINITION

Classification: 73/658

With electrically controlled indicator:

(under subclass 649) Subject matter wherein the means for indicating is electrical.

SEE OR SEARCH THIS CLASS, SUBCLASS:

654, for similar structure in combination with inertia type sensing apparatus.

SEE OR SEARCH CLASS

340, Communications: Electrical,

683, for machine vibration responsive alarms.