US PATENT SUBCLASS 16 / 50
.~ Hinge
Current as of: June, 1999
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DEFINITION
Classification: 16/50
(under subclass 49) Devices combined with hinge structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54, for liquid type checks combined with hinge structure.
68, for pneumatic type checks combined with hinge structure.
221+, for hinge structure, per se.