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Patents Granted on 1842-02-__
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,440Feb. 01, 1842H. AikenImprovement in machines for excavating ditches
2,443Feb. 01, 1842R. CookManufacture of Wrought-Iron and Steel Cannons
2,444Feb. 01, 1842S.E. Burnham, R. CookMode of straining saws for sawmillsreciprocating sawmills
2,453Feb. 07, 1842J. Walter, L.D. WalterMachine for Making Screwsscrew machines
2,457Feb. 12, 1842A. KinneyMachine for cutting shinglesshingle machines
2,459Feb. 12, 1842W. Murray, J. MurrayMachine for breaking and grinding corn and corncobscorn grinders
2,467Feb. 21, 1842A. RalstonGrain Separatorcorn and grain separators
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