US PATENT SUBCLASS 423 / 601
.~.~.~ Arsenic (e.g., arsenite, etc.)

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

579  DF  OXYGEN OR COMPOUND THEREOF {4}
592  DF  .~ Metal containing {12}
593  DF  .~.~ Plural metals or metal and ammonium {6}
601.~.~.~ Arsenic (e.g., arsenite, etc.) {1}
602  DF  .~.~.~.~> Arsenate {1}

DEFINITION

Classification: 423/601

(under subclass 593) Products or processes wherein the compound contains arsenic.