US PATENT SUBCLASS 419 / 19
.~.~ Oxide containing

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

1  DF  POWDER METALLURGY PROCESSES WITH HEATING OR SINTERING {16}
10  DF  .~ Metal and nonmetal in final product {5}
19.~.~ Oxide containing {3}
20  DF  .~.~.~> Rare earth oxide
21  DF  .~.~.~> Silver metal with metal oxide
22  DF  .~.~.~> Copper oxide

DEFINITION

Classification: 419/19

Oxide containing:

(under subclass 10) Processes in which the nonmetal material includes an inorganic oxide compound.