US PATENT SUBCLASS 4 / 241
.~ Counterbalanced or spring biased
Current as of:
June, 1999
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BATHS, CLOSETS, SINKS, AND SPITTOONS
237
DF
SEAT
{4}
241
.~ Counterbalanced or spring biased
DEFINITION
Classification: 4/241
Means for counterbalancing or causing a seat to be swung upward, generally by a weight or spring.
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