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Expired
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Percy Hulburd
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Individual
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Individual
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Publication of GB190823530ApublicationCriticalpatent/GB190823530A/en
23,530. Hulburd, P. Nov. 3. Plug cocks comprise a hard-metal plug c working within a soft-metal removable seating b which projects below the aperture within which it is placed. The seating is provided with lugs d which engage grooves in the casing, thereby preventing rotation of the seat. Covers e, h are provided.
GB190823530D1908-11-031908-11-03Improvements in Blow-off Cocks and the like.
ExpiredGB190823530A
(en)