US PATENT SUBCLASS 377 / 21
.~.~ Fluid flow

Current as of: June, 1999
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377 /   HD   ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS

1  DF  APPLICATIONS {11}
19  DF  .~ Measuring or testing {6}
21.~.~ Fluid flow

DEFINITION

Classification: 377/21

Fluid flow:

(under subclass 19) Subject matter where the parameter is the rate of flow of a fluid.

SEE OR SEARCH CLASS

73, Measuring and Testing,

861+, for means for measuring fluid flow where significant structure of the measuring means is claimed.

137, Fluid Handling, appropriate subclass for fluid flow which includes structure to fluid handling.