US PATENT SUBCLASS 556 / 177
.~.~ Oxygen double bonded directly to sulfur

Current as of: June, 1999
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556 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
170  DF  .~ ALUMINUM CONTAINING {11}
177.~.~ Oxygen double bonded directly to sulfur

DEFINITION

Classification: 556/177

(under subclass 170) Compounds which contain oxygen double bonded directly to sulfur.

(1) Note. An example of a compound provided for herein is: [figure]