US PATENT SUBCLASS 423 / 510
.~ Elemental selenium or tellurium

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

508  DF  SELENIUM OR TELLURIUM OR COMPOUND THEREOF {2}
510.~ Elemental selenium or tellurium

DEFINITION

Classification: 423/510

(under subclass 508) Products and processes wherein the

product is elemental selenium or tellurium.