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Publication of FR895453ApublicationCriticalpatent/FR895453A/fr
B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
B31F1/20—Corrugating; Corrugating combined with laminating to other layers
B31F1/205—Corrugating tubes
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FR895453D1942-06-271943-06-11Procédé et dispositif pour la fabrication de tuyaux ou tubes rainurés en spirale
ExpiredFR895453A
(fr)