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All Patents in class 200/16A
Patents 1 - 4 of 4
First set of recordsLast set of records
RE200May 13, 1851G.H. CorlissImprovements in Cut-Off and Working the Valves of Steam Engines steam engines
1,161,477Nov. 23, 1915A.J. HortonCircuit-controllerelectric switches
1,864,654Jun. 28, 1932F.S. Kingston, B.L. ConleyElectric switchelectric switches
3,057,554Oct. 09, 1962K.C. Allen, E.E. Boshinski, D.A. MeekerScales
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