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Patents for Horatio Gates Spafford
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
599XMay 03, 1805H.G. SpaffordClose fire place
3,603XOct. 30, 1822H.G. SpaffordArt of making cast and wrought steelsteel maker
3,604XOct. 30, 1822H.G. SpaffordMaking iron and steelsteel maker
3,625XDec. 19, 1822H.G. SpaffordArt of making edge toolstool maker
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