D
TEXTILES; PAPER
D
TEXTILES; PAPER
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
D21F
PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
D21F
PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
D21F11/00
Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
D21F11/00
Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines