US PATENT SUBCLASS 420 / 591
MISCELLANEOUS


Current as of: June, 1999
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420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

591MISCELLANEOUS


DEFINITION

Classification: 420/591

Miscellaneous:

(under the class definition) Alloys or metallic composition not provided for in any subclass above.

(1) Note. Specific subject matter found in this subclass includes e.g., alloys based on boron containing metal and alloys containing less than 50 percent of total metals, but at least some metal.

CROSS-REFERENCE ART COLLECTIONS