US PATENT SUBCLASS 436 / 118
.~.~ Both nitrogen oxide and dioxide

Current as of: June, 1999
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436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

106  DF  NITROGEN CONTAINING {7}
116  DF  .~ Oxides of nitrogen {2}
118.~.~ Both nitrogen oxide and dioxide

DEFINITION

Classification: 436/118

Both nitrogen oxide and dioxide:

(under subclass 116) Subject matter in which both nitric and nitrous oxide are determined.