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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21/00
Nestable, stackable or joinable containers; Containers of variable capacity
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B65D21/02
Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
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B65D21/0209
stackable or joined together one-upon-the-other in the upright or upside-down position
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B65D21/023
Closed containers provided with local cooperating elements in the top and bottom surfaces, e.g. projection and recess
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B65D21/0231
Bottles, canisters or jars whereby the neck or handle project into a cooperating cavity in the bottom
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