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Robert Luke Howard (1834-1919) of Hayward Tyler and Co
1856 Patent. '1572. To Robert Luke Howard, of 85, Whitecross-street, in the county of Middlesex, Engineer, for the invention of "improvements in valves for regulating the flow of fluids."
1856 Acquired the business of Hayward Tyler and Co
1863 Joined in the business by his brother Eliot Howard