US PATENT SUBCLASS 73 / 861.45
.~.~.~ By mechanical means

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

861  DF  VOLUME OR RATE OF FLOW {23}
861.42  DF  .~ Using differential pressure {6}
861.43  DF  .~.~ With time integration {2}
861.45.~.~.~ By mechanical means {1}
861.46  DF  .~.~.~.~> Including pressure applied to liquid column or reservoir

DEFINITION

Classification: 73/861.45

By mechanical means:

(under subclass 861.43) Subject matter wherein the integration is performed mechanically.