US PATENT SUBCLASS 162 / 58
.~.~ In rotating vessel

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

1  DF  PROCESSES OF CHEMICAL LIBERATION, RECOVERY OR PURIFICATION OF NATURAL CELLULOSE OR FIBROUS MATERIAL {33}
57  DF  .~ With agitation or forced circulation {2}
58.~.~ In rotating vessel

DEFINITION

Classification: 162/58

(under subclass 57) Processes in which motion is imparted to the fibrous material and/or treating liquid by rotation of the treating vessel.