US PATENT SUBCLASS 75 / 10.64
.~.~ Vacuum purifying or degassing


Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
10.1  DF  .~ Electrothermic processes (e.g., microwave, induction, resistance, electric arc, plasma, etc.) {17}
10.64.~.~ Vacuum purifying or degassing


DEFINITION

Classification: 75/10.64

Vacuum purifying or degassing:

(under subclass 10.1) Process wherein reduced pressure is used to purify or degas the molten metal.