US PATENT SUBCLASS 162 / 253
.~.~ Of plural operations

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

232  DF  APPARATUS {22}
252  DF  .~ Automatic control {7}
253.~.~ Of plural operations

DEFINITION

Classification: 162/253

(under subclass 252) Apparatus in which the control is of more than a single device.