Patent classifications
D
TEXTILES; PAPER
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D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
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D21G
CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
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1/00
Calenders; Smoothing apparatus
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D21G1/002
Opening or closing mechanisms; Regulating the pressure
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D21G1/004
Regulating the pressure
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D21G1/0046
depending on the measured properties of the calendered web
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