US PATENT SUBCLASS 73 / 1.49
.~.~.~.~ Plural watches or plural sensors

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

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.42  DF  .~ Timing apparatus (e.g., fuse, camera, or shutter) {2}
1.43  DF  .~.~ Chronometer (e.g., clock, watch, or watch unbalance) {5}
1.48  DF  .~.~.~ Using sound sensor or piezoelectric vibration sensor {2}
1.49.~.~.~.~ Plural watches or plural sensors

DEFINITION

Classification: 73/1.49

Plural watches or plural sensors:

(under subclass 1.48) Subject matter wherein the device being proven or calibrated includes at least two chronometers or transducers.