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B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
B43K—IMPLEMENTS FOR WRITING OR DRAWING
B43K7/00—Ball-point pens
B43K7/02—Ink reservoirs; Ink cartridges
B43K7/04—Arrangements for filling the reservoirs, e.g. arrangements at the ball-point ends
FR1027093D1950-10-311950-10-31Perfectionnements aux distributeurs de matières liquides ou pâteuses, notamment pour encre de stylographes
ExpiredFR1027093A
(fr)