US PATENT SUBCLASS 72 / 368
.~.~ Making

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

362  DF  PROCESS {8}
367.1  DF  .~ Tube making or reshaping {11}
368.~.~ Making

DEFINITION

Classification: 72/368

Making:

(under subclass 367.1) Process which relates to the manufacture of a tube and in which the blank or material subjected to the deforming operation has a shape other than a tube immediately prior to such operation.