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Patents Granted on 1850-12-17
Patents 1 - 3 of 3
First set of recordsLast set of records
7,832Dec. 17, 1850O. ChildMill for sawing with circular sawscircular sawmills
7,836Dec. 17, 1850J.F. FlandersMachinery for Cutting and Binding Sheet Metalsheet metal
7,838Dec. 17, 1850S.H. GilmanExpansion-Gear for Horizontal Enginessteam engine valve gear
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