US PATENT SUBCLASS 210 / 88
.~.~ Meter-controlled cyclic systems

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  DF  .~ Responsive to fluid flow {1}
88.~.~ Meter-controlled cyclic systems {1}
89  DF  .~.~.~> With time control

DEFINITION

Classification: 210/88

(under subclass 87) Apparatus in which a meter controls an operating cycle of the apparatus.