Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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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
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51/00
Closures not otherwise provided for
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B65D51/18
Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
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B65D51/20
Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
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B65D51/22
having means for piercing, cutting, or tearing the inner closure
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