US PATENT SUBCLASS 324 / 520
.~.~ By frequency sensitive or responsive detection

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

500  DF  FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS {10}
512  DF  .~ For fault location {10}
520.~.~ By frequency sensitive or responsive detection

DEFINITION

Classification: 324/520

By frequency sensitive or responsive detection:

(under subclass 512) Subject matter where a frequency related signal is used to locate a break, ground, or short in a conductor.