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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
B65D49/00—Arrangements or devices for preventing refilling of containers
B65D49/02—One-way valves
B65D49/04—Weighted valves
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Engineering & Computer Science
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FR494744D1919-01-131919-01-13
Improvements to tamper-proof bottle closures
ExpiredFR494744A
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