FR927167A - Procédé pour la fabrication de matières fibreuses feutrées imprégnées de bitumes, et matières fibreuses feutrées ainsi fabriquées
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Procédé pour la fabrication de matières fibreuses feutrées imprégnées de bitumes, et matières fibreuses feutrées ainsi fabriquées
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Bataafsche Petroleum Maatschappij NV
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Bataafsche Petroleum Maatschappij NV
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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
D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
D21H17/61—Bitumen
FR927167D1946-05-211946-05-21Procédé pour la fabrication de matières fibreuses feutrées imprégnées de bitumes, et matières fibreuses feutrées ainsi fabriquées
ExpiredFR927167A
(fr)