US PATENT SUBCLASS 96 / 421
.~ Pressure measuring means

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

417  DF  WITH SIGNALS, INDICATORS, MEASURING, OR TESTING MEANS {6}
421.~ Pressure measuring means

DEFINITION

Classification: 96/421

Pressure measuring means:

(under subclass 417) Apparatus having means in which pressure or a change therein is detected.