D21F

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Description

PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON

Subclasses

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Subclass Title
1/00 Wet end of machines for making continuous webs of paper
1/02 Wet end of machines for making continuous webs of paper Head boxes of Fourdrinier machines
1/04 Wet end of machines for making continuous webs of paper Head boxes of cylinder machines
1/06 Wet end of machines for making continuous webs of paper Regulating pulp flow
1/08 Wet end of machines for making continuous webs of paper Regulating consistency

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