US PATENT SUBCLASS 73 / 1.07
.~.~.~ Span or zero

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

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.02  DF  .~ Gas or liquid analyzer {2}
1.06  DF  .~.~ Gas {1}
1.07.~.~.~ Span or zero

DEFINITION

Classification: 73/1.07

Span or zero:

(under subclass 1.06) Subject matter wherein the measuring, testing, or condition responsive device produces an output signal in response to a condition being sensed and wherein the device is proven or calibrated by setting a range of values or a base value for the output signal.