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Priority to FR839894ApriorityCriticalpatent/FR1275499A/fr
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Publication of FR1275499ApublicationCriticalpatent/FR1275499A/fr
B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
B65D31/14—Valve bags, i.e. with valves for filling
B65D31/145—Valve bags, i.e. with valves for filling the filling port being provided in a flat upper sealing-edge
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FR839894A1960-09-291960-09-29Procédé pour la fabrication d'un récipient de matériel laminaire flexible, pourvu d'une valve d'acdès
ExpiredFR1275499A
(fr)