US PATENT SUBCLASS 292 / 23
.~.~ Roller

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

2  DF  BOLTS {15}
3  DF  .~ Multiple {16}
23.~.~ Roller

DEFINITION

Classification: 292/23

(under subclass 3) Devices of the roller type.