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
Dispositif pour introduire dans un recipient au travers d'une valve sertie sur ce recipient un tres petit volume de fluide avec une tres grande precision
Protective cap for gas bottle - guarantees closure of obturator with externally notched collar into which stopper is screwed with handle arms projecting through slots