US PATENT SUBCLASS 423 / 563-- .~.~ Hydrogen sulfide

US PATENT SUBCLASS 423 / 563
.~.~ Hydrogen sulfide

423 /	HD	CHEMISTRY OF INORGANIC COMPOUNDS

511	DF	SULFUR OR COMPOUND THEREOF {4}
561.1	DF	.~ Binary compound {7}
563		.~.~ Hydrogen sulfide {1}
564	DF	.~.~.~> By catalytic reaction

Classification: 423/563

(under subclass 561.1) Products or processes in which the binary compound is hydrogen sulfide (H_{2[end subscrpt]S).}