US PATENT SUBCLASS 470 / 36
.~.~.~.~ Formed by heat treatment and metal shaping, i.e., wrought type

Current as of: June, 1999
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470 /   HD   THREADED, HEADED FASTENER, OR WASHER MAKING: PROCESS AND APPARATUS

1  DF  PROCESS {5}
27  DF  .~ Making headed fastener, e.g., rivet or nail, etc. {2}
34  DF  .~.~ Nail type {3}
35  DF  .~.~.~ Horseshoe {2}
36.~.~.~.~ Formed by heat treatment and metal shaping, i.e., wrought type

DEFINITION

Classification: 470/36

Formed by heat treatment and metal shaping, i.e., wrought type:

(under subclass 35) Subject matter having a step of heating or cooling a fastener and a step of shaping the fastener.