US PATENT SUBCLASS 242 / 118.3
.~ Cop-tube type (i.e., headless or single-headed tube)

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

118  DF  BOBBIN OR SPOOL {5}
118.3.~ Cop-tube type (i.e., headless or single-headed tube) {2}
118.31  DF  .~.~> Reinforcing feature
118.32  DF  .~.~> Tube material feature

DEFINITION

Classification: 242/118.3

(under subclass 118) Winding cores including a tubular stem, shell or the like, adapted to be supported on a spindle or other holder and on which cops or masses of thread are wound.

(1) Note. Included in this and indented subclasses are stems having no flanges and stems having one flange.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118.4+, for tubes having two flanges.