US PATENT SUBCLASS 162 / 242
.~.~ Combined

Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

232  DF  APPARATUS {22}
233  DF  .~ Digester {12}
242.~.~ Combined

DEFINITION

Classification: 162/242

(under subclass 233) Apparatus having means combined with or in addition to digester structures which means either perfects the operation of the digester or performs some function other than digestion.