US PATENT SUBCLASS 29 / 558
.~.~ Successive distinct removal operations

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
557  DF  .~ Shaping one-piece blank by removing material {1}
558.~.~ Successive distinct removal operations

DEFINITION

Classification: 29/558

Successive distinct removal operations:

(under subclass 557) Process which includes a first removal step immediately followed by a second removal step of a type different from the first.