US PATENT SUBCLASS 411 / 130
.~.~.~ And is formed from plural, cooperating parts

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

81  DF  THREADED FASTENER LOCKED TO A DISCREET STRUCTURE (E.G., PLATE, RAIL, WHEEL) {13}
116  DF  .~ Head or nut side face held by discrete member (e.g., side lock) {7}
129  DF  .~.~ Member engages inwardly facing surface of bolt head or nut {2}
130.~.~.~ And is formed from plural, cooperating parts

DEFINITION

Classification: 411/130

And is formed from plural, cooperating parts:

(under subclass 129) Device wherein the member consists of at least two parts which are discrete but which work with one another to perform the function of the member.