US PATENT SUBCLASS 73 / 863.72
.~.~ Single valve unit

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

863  DF  SAMPLER, SAMPLE HANDLING, ETC. {11}
863.71  DF  .~ Conduit or passageway section capture chamber {1}
863.72.~.~ Single valve unit {1}
863.73  DF  .~.~.~> Capture chamber within valve unit

DEFINITION

Classification: 73/863.72

Single valve unit:

(under subclass 863.71) Subject matter wherein the isolation means is a single movable valve.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation, for a valve, per se.