US PATENT SUBCLASS 419 / 45
.~ Sintering which includes a chemical reaction

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419 /   HD   POWDER METALLURGY PROCESSES

1  DF  POWDER METALLURGY PROCESSES WITH HEATING OR SINTERING {16}
45.~ Sintering which includes a chemical reaction

DEFINITION

Classification: 419/45

(under subclass 1) Sintering which includes a chemical reaction: Processes which include a chemical reaction which is effected by the conditions present during the sintering step.

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46, where it is recited that an alloy is formed.