US PATENT SUBCLASS 324 / 76.53
.~.~.~ With phase lock

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

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
76.39  DF  .~ Frequency of cyclic current or voltage (e.g., cyclic counting etc.) {6}
76.52  DF  .~.~ By phase comparison {10}
76.53.~.~.~ With phase lock

DEFINITION

Classification: 324/76.53

With phase lock:

(under subclass 76.52) Subject matter comprising means of making the phase of an oscillator signal follow exactly the phase of a reference signal.