US PATENT SUBCLASS 411 / 189
.~.~.~.~ Surface deforms resiliently

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}
172  DF  .~ Nut having a portion for attachment to substructure {2}
176  DF  .~.~ Fastener having a deformable portion or deforms substructure (e.g., prong) {3}
184  DF  .~.~.~ Region on inwardly facing surface of bolt head or nut {3}
189.~.~.~.~ Surface deforms resiliently

DEFINITION

Classification: 411/189

Surface deforms resiliently:

(under subclass 184) Device wherein the deformation which occurs in the surface is elastic in nature.