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Expired
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James Hopwood
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Individual
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Individual
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Publication of GB190400188ApublicationCriticalpatent/GB190400188A/en
188. Hopwood, J. Jan. 4. Capsuling and sealing bottles, jars, etc.; stoppers.-To prevent the valve b of a non-refillable bottle from being tampered with, an upper stopper is arranged in the bottle neck. The upper stopper is made in two parts c, d, held apart at their lower ends by an india-rubber or other spring e. The upper stopper is made of metal coated with enamel or other non-corrosive substance. The mouth of the bottle is closed by an ordinary cork.