US PATENT SUBCLASS 420 / 428
CHROMIUM 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

428CHROMIUM BASE


DEFINITION

Classification: 420/428

CHROMIUM BASE:

(under the class definition) Alloy, or metallic composition which contains over 50 percent of chromium.