US PATENT SUBCLASS 423 / 509
.~ Binary compound

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

508  DF  SELENIUM OR TELLURIUM OR COMPOUND THEREOF {2}
509.~ Binary compound

DEFINITION

Classification: 423/509

(under subclass 508) Products and processes wherein the product is a binary compound which contains only one element in addition to the selenium or tellurium.