US PATENT SUBCLASS 411 / 901
.~ Core and exterior of different materials


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

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


DEFINITION

Classification: 411/901

Core and exterior or different materials:

Art collection of fastener or fastener elements in which the interior and exterior portions are made of distinct different substances.