US PATENT SUBCLASS 411 / 435
.~ Wing

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}
435.~ Wing

DEFINITION

Classification: 411/435

Wing:

(under subclass 427) Subject matter provided with driving means in the form of a radially extending generally flat gripping section.

(1) Note. The wing means usually has two such sections and are generally designed to be engaged by the fingers of the user.