FR623350A - Perfectionnements apportés au traitement des déchets de papier et matières analogues pour la préparation de la pulpe à papier
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Perfectionnements apportés au traitement des déchets de papier et matières analogues pour la préparation de la pulpe à papier
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D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
D21D1/00—Methods of beating or refining; Beaters of the Hollander type
D21D1/20—Methods of refining
D21D1/32—Hammer mills
FR623350D1926-10-201926-10-20Perfectionnements apportés au traitement des déchets de papier et matières analogues pour la préparation de la pulpe à papier
ExpiredFR623350A
(fr)