US PATENT SUBCLASS 156 / 431
.~.~.~.~ About circular section core or mandrel

Current as of: June, 1999
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156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

349  DF  SURFACE BONDING MEANS AND/OR ASSEMBLY MEANS THEREFOR {34}
425  DF  .~ Longitudinally progressive helical winding means {2}
428  DF  .~.~ Forming and/or covering indefinite length article {2}
430  DF  .~.~.~ By winding plural strands or webs {1}
431.~.~.~.~ About circular section core or mandrel {1}
432  DF  .~.~.~.~.~> Plural discrete axially spaced winding means

DEFINITION

Classification: 156/431

(under subclass 430) Apparatus in which the base around which the indefinite length material is wound is generally circular in cross section.