US PATENT SUBCLASS 292 / 239
.~.~.~ Roller

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

2  DF  BOLTS {15}
194  DF  .~ Swinging {5}
230  DF  .~.~ Gravity actuated {2}
239.~.~.~ Roller

DEFINITION

Classification: 292/239

(under subclass 230) Devices carrying rollers and being with or without operating means.