US PATENT SUBCLASS 252 / 301.5
.~ Tungsten containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

301.4 R  DF  INORGANIC LUMINESCENT COMPOSITIONS {6}
301.5.~ Tungsten containing

DEFINITION

Classification: 252/301.5

(under subclass 301.4) Compositions which contain tungsten in combined or elemental form.

SEE OR SEARCH CLASS

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,

248, for a consolidated metal powder composition having a noble metal or copper base.