US PATENT SUBCLASS 422 / 123
.~ Including means adding material into environmental gas

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

120  DF  FOR DEODORIZING OF, OR CHEMICAL PURIFICATION OF, OR GENERATION OF, LIFE-SUSTAINING ENVIRONMENTAL GAS {3}
123.~ Including means adding material into environmental gas {2}
124  DF  .~.~> And mechanical means creating forced draft at addition site
125  DF  .~.~> With material-heating means {1}

DEFINITION

Classification: 422/123

Including means adding material into environmental gas:

(under subclass 120) Apparatus having means for dispensing or injecting material into the gas.