US PATENT SUBCLASS 29 / 525.11
.~.~.~ Threaded fastener

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
428  DF  .~ Assembling or joining {21}
525.01  DF  .~.~ By applying separate fastener {5}
525.11.~.~.~ Threaded fastener {1}
525.12  DF  .~.~.~.~> At least one part nonmetallic

DEFINITION

Classification: 29/525.11

Threaded fastener:

(under subclass 525.01) Process wherein the connecting member relies upon a helical or spiral ridge for effecting the joining.