US PATENT SUBCLASS 162 / 121
.~.~ With heat

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

100  DF  PROCESSES AND PRODUCTS {31}
118  DF  .~ With winding or roll forming {4}
121.~.~ With heat

DEFINITION

Classification: 162/121

(under subclass 118) Processes combined with a step of heating the fibrous material.