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Expired
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Giuseppe Vincenzo De Luca
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Individual
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Individual
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Publication of GB190717836ApublicationCriticalpatent/GB190717836A/en
17,836. Luca, G. V. de. Aug. 6. Stoppers, screw ; stopper washers.-The part 2 of the stopper lying between the bead 1 and the screw-thread 4 is grooved, and the lower surface of the head 1 is formed with annular grooves 1<x>. A cork ring 6 is placed upon the grooved part 2, which may be tapered at 3 to facilitate this. In a modification, a cork or rubber ring 8, Fig. 7, is placed above the 'ring 6, and forms an additional seal at the mouth of the bottle &c.
GB190717836D1907-08-061907-08-06Improvements in Stoppers for Bottles, Jars and the like.
ExpiredGB190717836A
(en)