US PATENT SUBCLASS 292 / 356
KNOB BEARINGS

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

356KNOB BEARINGS

DEFINITION

Classification: 292/356

(under the class definition) Subject matter comprising bearings and antifriction devices on the casings or roseplates for the latch-spindles or knob-shanks.