US PATENT SUBCLASS 210 / 87
.~ Responsive to fluid flow

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

85  DF  WITH ALARM, INDICATOR, REGISTER, RECORDER, SIGNAL OR INSPECTION MEANS {7}
87.~ Responsive to fluid flow {1}
88  DF  .~.~> Meter-controlled cyclic systems {1}

DEFINITION

Classification: 210/87

(under subclass 85) Apparatus responsive to flow of fluids.