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Patents for George W. Hubbard
Patents 1 - 5 of 5
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PictureNumberDatePatenteeTitle
73,100Jan. 07, 1868G.W. HubbardImprovement in shaft-coupling
75,273Mar. 10, 1868S.A. Smith, G.W. HubbardImprovement in grinding-mills
80,546Aug. 04, 1868S.A. Smith, G.W. HubbardImprovement in hangers for shafting
82,621Sep. 29, 1868G.W. HubbardImprovement in Hammers
441,844Dec. 02, 1890G.W. HubbardNippers
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