US PATENT SUBCLASS 411 / 543
.~ Wire formed


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

531  DF  WASHER STRUCTURE {11}
543.~ Wire formed


DEFINITION

Classification: 411/543

Wire formed:

(under subclass 531) Subject matter wherein the element is fabricated from an elongated piece of metal stock having a circular cross section.