US PATENT SUBCLASS 140 / 92
.~ Stud spirals


Current as of: June, 1999
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140 /   HD   WIREWORKING

71 R  DF  ARTICLE MAKING OR FORMING {22}
92.~ Stud spirals


DEFINITION

Classification: 140/92

Making spiral studs--for example, shirt-studs--comprising a tapering or conical coil of wire and terminating in an axially alined shank or end at right angles to the plane of coiling.

SEE OR SEARCH CLASS

72, Metal Deforming,

138+, for an apparatus for forming a metal coil of varied

pitch or diameter.