US PATENT SUBCLASS 4 / 337
.~.~.~.~ And drain means


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

300  DF  FLUSH CLOSET {22}
333  DF  .~ Normally empty tank {2}
334  DF  .~.~ Pressure tank {1}
335  DF  .~.~.~ With seat-actuated valve {2}
337.~.~.~.~ And drain means


DEFINITION

Classification: 4/337

And drain means:

(under subclass 335) Subject matter having means to drain the liquid from the tank supply and/or valves after a flush.

SEE OR SEARCH THIS CLASS, SUBCLASS:

339, for drain means where the tank is not under pressure.

SEE OR SEARCH CLASS

137, Fluid Handling,

302, for freeze protection means.