US PATENT SUBCLASS 156 / 457
.~.~.~ Centerless 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}
443  DF  .~ With bending, folding, winding, or wrapping means {5}
446  DF  .~.~ Rotating mandrel or article {4}
457.~.~.~ Centerless core or mandrel

DEFINITION

Classification: 156/457

(under subclass 446) Apparatus in which the rotating mandrel or article is supported at or adjacent its periphery.

(1) Note. In the case of a hollow article, such as a large diameter pipe, it may be supported at its inner periphery rather than the outer peripheral surface yet still fall within the scope of this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

407, for centerless core tire building apparatus and see (2) Note of subclass 446.