US PATENT SUBCLASS 73 / 23.29
.~.~.~ Pressure

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

23.2  DF  GAS ANALYSIS {15}
23.21  DF  .~ With compensation detail (for error or drift correction, etc.) {2}
23.28  DF  .~.~ For density or specific gravity {1}
23.29.~.~.~ Pressure

DEFINITION

Classification: 73/23.29

Pressure:

(under subclass 23.28) Subject matter wherein the condition being corrected or adjusted is the pressure of the gas being measured or tested, which pressure is used to determine the density or specific gravity of the gas.