US PATENT SUBCLASS 420 / 526
MERCURY 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

526MERCURY BASE {1}
527  DF  .~> Silver containing

DEFINITION

Classification: 420/526

MERCURY BASE:

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