US PATENT SUBCLASS 420 / 507
GOLD BASE

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

Internet Version by PATENTEC © 1999      Terms of Use


420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

507GOLD BASE {4}
508  DF  .~> Palladium containing {1}
510  DF  .~> Platinum containing
511  DF  .~> Silver containing
512  DF  .~> Iron, cobalt, or nickel containing

DEFINITION

Classification: 420/507

GOLD BASE:

(under the class definition) Alloy, or metallic composition

which contains over 50 percent of gold by weight.