US PATENT SUBCLASS 411 / 428
.~ Including lubricating means

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

427  DF  INTERNALLY THREADED FASTENER ELEMENT, E.G., NUT, ETC. {5}
428.~ Including lubricating means

DEFINITION

Classification: 411/428

Including lubricating means:

(under subclass 427) Subject matter provided with means having or supplying fluid for reducing friction between mating threads of the internally threaded fastener element and an externally threaded fastener element.

SEE OR SEARCH CLASS

384, Bearings,

286+, for lubricating sleeves, or liners.