US PATENT SUBCLASS 72 / 370.25
.~.~.~.~ Reduction in diameter

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}
370.23  DF  .~.~ Change in cross section {2}
370.24  DF  .~.~.~ Change in circular tube diameter {1}
370.25.~.~.~.~ Reduction in diameter

DEFINITION

Classification: 72/370.25

Reduction in diameter:

(under subclass 370.24) Process in which the transverse dimension of the annular profile is decreased.