US PATENT SUBCLASS 4 / 402
.~.~.~.~ Having liquid receptacle open upwardly

Current as of: June, 1999
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4 /   HD   BATHS, CLOSETS, SINKS, AND SPITTOONS

300  DF  FLUSH CLOSET {22}
353  DF  .~ Tank only {9}
378  DF  .~.~ With outlet valve {6}
395  DF  .~.~.~ Float type {4}
402.~.~.~.~ Having liquid receptacle open upwardly

DEFINITION

Classification: 4/402

Having liquid receptacle open upwardly:

(under subclass 395) Subject matter wherein the valve has a recess on the top surface to hold liquid to cause the valve to seat.