US PATENT SUBCLASS 73 / 1.62
.~.~.~ Zero

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

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.57  DF  .~ Fluid pressure {7}
1.59  DF  .~.~ With signal correction or processing {3}
1.62.~.~.~ Zero

DEFINITION

Classification: 73/1.62

Zero:

(under subclass 1.59) Subject matter wherein the pressure responsive device is adjusted or checked for accuracy by checking its response to a reference pressure.