US PATENT SUBCLASS 562 / 847
.~.~ Phosgene, per se

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
840  DF  .~ Carboxylic halides (i.e., compounds having the -C(=O)-halo group) {11}
847.~.~ Phosgene, per se

DEFINITION

Classification: 562/847

(under subclass 840) The compound which has the following structure: [figure]