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Publication of FR681268ApublicationCriticalpatent/FR681268A/fr
D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
D21H25/005—Mechanical treatment
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Engineering & Computer Science
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Mechanical Engineering
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FR681268D1928-09-031929-09-03Procédé de fabrication de papiers, cartons, feutres
ExpiredFR681268A
(fr)