US PATENT SUBCLASS 528 / 387
.~.~.~ Carbon disulfide or hydrogen sulfide is reactant


Current as of: June, 1999
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528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
373  DF  .~ FROM SULFUR-CONTAINING REACTANT {5}
381  DF  .~.~ From inorganic sulfur-containing reactant {4}
387.~.~.~ Carbon disulfide or hydrogen sulfide is reactant


DEFINITION

Classification: 528/387

(under subclass 381) Subject matter wherein the inorganic reactant containing sulfur is carbon disulfide (C52) or hydrogen sulfide (H25).