US PATENT SUBCLASS 411 / 946
.~.~ Spring-seated

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

924  DF  COUPLED NUT AND BOLT {13}
945  DF  .~ Cross key {1}
946.~.~ Spring-seated

DEFINITION

Classification: 411/946

Spring-seated:

Art collection under art collection 945 in which the key is forced to its seat by a spring.