US PATENT SUBCLASS 73 / 861.44
.~.~.~ By electrical means
Current as of:
June, 1999
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73 /
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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}
861.44
.~.~.~ By electrical means
DEFINITION
Classification: 73/861.44
By electrical means:
(under subclass 861.43) Subject matter wherein the integration is performed electrically.