US PATENT SUBCLASS 411 / 900
FASTENER OR FASTENER ELEMENT COMPOSED OF PLURAL DIFFERENT MATERIALS

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

900FASTENER OR FASTENER ELEMENT COMPOSED OF PLURAL DIFFERENT MATERIALS {1}
901  DF  .~> Core and exterior of different materials {1}

DEFINITION

Classification: 411/900

FASTENER OR FASTENER ELEMENT COMPOSED OF PLURAL DIFFERENT MATERIALS:

Art collection of fasteners or fastener elements made of plural distinct substances.