US PATENT SUBCLASS 4 / 281
.~ Gravity controlled valve

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

258  DF  SPITTOONS {14}
281.~ Gravity controlled valve

DEFINITION

Classification: 4/281

The valve governing the inlet to the spittoon is normally open; but if the spittoon is tipped over the valve will close.

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