US PATENT SUBCLASS 162 / DIG 10
.~ Computer control of paper making variables

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

DIG 9  DD  Uses for paper making sludge {1}
DIG 10.~ Computer control of paper making variables {1}
DIG 11  DD  .~.~> Wet end paper making variables