US PATENT SUBCLASS 140 / 92.93
.~.~ Grooved roller helix guides

Current as of: June, 1999
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140 /   HD   WIREWORKING

71 R  DF  ARTICLE MAKING OR FORMING {22}
92.3  DF  .~ Helix screwing through row of loops or openings {8}
92.93.~.~ Grooved roller helix guides

DEFINITION

Classification: 140/92.93

(under subclass 92.3) Apparatus including a plurality of axially parallel, radially spaced, grooved rollers, through which a helix is simultaneously guided, rotated, and advanced.