US PATENT SUBCLASS 73 / 196
.~.~ Flow comparing

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

861  DF  VOLUME OR RATE OF FLOW {23}
195  DF  .~ System {2}
196.~.~ Flow comparing

DEFINITION

Classification: 73/196

(under subclass 195) Systems wherein two or more flows are constantly compared and their ratio indicated, or where comparison is made of the flow of the same stream at two or more points.

SEE OR SEARCH THIS CLASS, SUBCLASS:

357, for flow comparing devices peculiarly adapted to measure temperature by change in flow characteristics of a fluid.