US PATENT SUBCLASS 292 / 193
.~.~ Roller

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

2  DF  BOLTS {15}
137  DF  .~ Sliding {9}
193.~.~ Roller

DEFINITION

Classification: 292/193

(under subclass 137) Devices carrying rollers, said elements or bolts being with or without operating means.