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Thomas William Twyford
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Individual
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Individual
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Publication of GB190206770ApublicationCriticalpatent/GB190206770A/en
6770. Twyford, T. W. March 20. Hinged valves.-Consists of a combined tubular waste valve and overflow pipe b which is coned, to fit the mouth of the waste pipe, and is hinged at f, so that it can be turned on one side, as shown, to discharge the basin.
GB190206770D1902-03-201902-03-20Improvements in Waste and Overflow Fittings for Baths, Lavatories Sinks and the like.
ExpiredGB190206770A
(en)