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Publication of FR629912ApublicationCriticalpatent/FR629912A/fr
D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
D21F1/00—Wet end of machines for making continuous webs of paper
D21F1/48—Suction apparatus
D21F1/50—Suction boxes with rolls
FR629912D1926-03-041927-02-28Boîte d'aspiration pour machines à papier, machines à carton, machines à essorer la cellulose et pour machines similaires
ExpiredFR629912A
(fr)