Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR759191ApublicationCriticalpatent/FR759191A/fr
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
FR759191D1931-10-161932-09-19Procédé et dispositifs de traitement continu de déchets de papier, de vieux papiers, de fibre de bois, de cellulose, etc.
ExpiredFR759191A
(fr)