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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
B65D27/00—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents
B65D27/32—Opening devices incorporated during envelope manufacture
B65D27/38—Tearing-strings or -strips
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Engineering & Computer Science
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FR785572D1934-05-031934-05-03Dispositif pour l'ouverture facile et nettement dirigée d'enveloppes de correspondance ou autres plis
ExpiredFR785572A
(fr)