US PATENT SUBCLASS 470 / 162
APPARATUS FOR MAKING WASHER

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

162APPARATUS FOR MAKING WASHER {1}
163  DF  .~> Lock washer

DEFINITION

Classification: 470/162

APPARATUS FOR MAKING WASHER:

(under the class definition) Subject matter for apparatus for manufacturing a article comprising an annular element adapted to be placed beneath the bearing surface of a bolt head, nut, or similar fastener.

SEE OR SEARCH CLASS

83, Cutting, appropriate subclasses for machine for cold-punching nut-blanks and washers.