US PATENT SUBCLASS 419 / 55
.~.~ Additional operation between heating steps

Current as of: June, 1999
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419 /   HD   POWDER METALLURGY PROCESSES

1  DF  POWDER METALLURGY PROCESSES WITH HEATING OR SINTERING {16}
53  DF  .~ Plural heating steps including sintering {2}
55.~.~ Additional operation between heating steps

DEFINITION

Classification: 419/55

(under subclass 53) Additional operation between heating steps: Processes wherein at least one operation or step other than a heating step is performed between two of the heating steps.