US PATENT SUBCLASS 73 / 30.03
.~.~ By rate of flow

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

23.2  DF  GAS ANALYSIS {15}
30.01  DF  .~ Density or specific gravity {3}
30.03.~.~ By rate of flow

DEFINITION

Classification: 73/30.03

By rate of flow:

(under subclass 30.01) Subject matter wherein the density of specific gravity of a gas is determined by measuring the rate of the flow of the gas.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118.2, for the measuring of the air intake of an auxiliary unit of an engine or a motor.

861+, for a device determining the volume of flow, speed, volume rate of flow, or mass rate of flow of fluent material.