US PATENT SUBCLASS 292 / 212
.~.~.~ Screw

Current as of: June, 1999
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292 /   HD   CLOSURE FASTENERS

2  DF  BOLTS {15}
194  DF  .~ Swinging {5}
195  DF  .~.~ Operating means {8}
212.~.~.~ Screw

DEFINITION

Classification: 292/212

(under subclass 195) Devices composed of screws or screw-threaded elements.