US PATENT SUBCLASS 222 / 69
.~.~.~ For vent only

Current as of: June, 1999
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222 /   HD   DISPENSING

52  DF  AUTOMATIC CONTROL {10}
64  DF  .~ Material level control {3}
67  DF  .~.~ Float-operated flow controllers {2}
69.~.~.~ For vent only

DEFINITION

Classification: 222/69

(under subclass 67) Dispensers having a float-operated controller for a venting outlet only.