US PATENT SUBCLASS 204 / 905
.~.~.~ Heavy metal agent

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

902  DF  PRODUCTION OF DESIRED COMPOUND BY WAVE ENERGY IN PRESENCE OF A CHEMICALLY DESIGNATED NONREACTANT CHEMICAL TREATING AGENT (EXCLUDING WATER, CHLOROFORM, CARBON TETRACHLORIDE, METHYLENE CHLORIDE OR BENZENE) {8}
903  DF  .~ Inorganic chemical treating agent {1}
904  DF  .~.~ Metal treating agent {1}
905.~.~.~ Heavy metal agent

DEFINITION

Classification: 204/905

HEAVY METAL AGENT:

(under subclass 904) Subject matter wherein the metal atom present has a specific gravity of more than four.