US PATENT SUBCLASS 72 / 370.2
.~.~.~ Axial

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}
370.19  DF  .~.~ Corrugations forming {1}
370.2.~.~.~ Axial

DEFINITION

Classification: 72/370.2

Axial:

(under subclass 370.19) Process in which the ridges and troughs are oriented parallel to the tube's* axis.