US PATENT SUBCLASS 419 / 60
.~.~.~ Vacuum

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

1  DF  POWDER METALLURGY PROCESSES WITH HEATING OR SINTERING {16}
56  DF  .~ Special medium during sintering {1}
57  DF  .~.~ Special atmosphere {3}
60.~.~.~ Vacuum

DEFINITION

Classification: 419/60

Vacuum:

(under subclass 57) Processes in which the special atmosphere is a vacuum.