US PATENT SUBCLASS 419 / 63
.~.~ Includes a chemical reaction

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


419 /   HD   POWDER METALLURGY PROCESSES

61  DF  FORMING ARTICLES BY UNITING RANDOMLY ASSOCIATED METAL PARTICLES {2}
62  DF  .~ Powder pretreatment {3}
63.~.~ Includes a chemical reaction

DEFINITION

Classification: 419/63

Includes a chemical reaction:

(under subclass 62) Processes wherein during the pre-treatment at least one component of the powder undergoes a chemical change.