US PATENT SUBCLASS 422 / 185
.~ For chemical recovery of chemicals from waste paper making liquor

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

129  DF  CHEMICAL REACTOR {28}
185.~ For chemical recovery of chemicals from waste paper making liquor

DEFINITION

Classification: 422/185

For chemical recovery of chemicals from waste paper making liquor:

(under subclass 129) Apparatus for chemically recovering chemicals for waste kraft or black liquors, e.g., waste liquor from a paper-making process.

SEE OR SEARCH CLASS

162, Paper Making and Fiber Liberation,

232+, for paper making apparatus.