US PATENT SUBCLASS 73 / 24.05
.~.~ Density or specific gravity of gas

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

23.2  DF  GAS ANALYSIS {15}
24.01  DF  .~ By vibration {5}
24.05.~.~ Density or specific gravity of gas

DEFINITION

Classification: 73/24.05

Density or specific gravity of gas:

(under subclass 24.01) Subject matter for determining the mass per unit volume of the gas or the ratio of the density of the gas to the density of some substance taken as a standard when both densities are obtained by weighing in air.