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Patents for Silver & Deming Manufacturing Co.
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
151,444May 26, 1874A.R. Silver, E.W. FawcettImprovement in Metal Drilling Machinesdrill presses
194,232Aug. 14, 1877E.W. FawcettImprovement in presses for lard, fruit, &c.
204,209May 28, 1878E.W. FawcettImprovement in meat-choppersbutcher
216,264Jun. 10, 1879E.W. FawcettImprovement in metal-drilling machinesdrill presses
216,536Jun. 17, 1879E.W. SilverImprovement in meat-choppersbutcher
257,871May 16, 1882J. Humphreys, Jr.Pump
367,374Aug. 02, 1887F.B. DemingRotary pump
371,518Oct. 11, 1887A. Potter, C.H. BettsDouble-acting force-pump
374,945Dec. 20, 1887F.B. DemingHub-Boring Machine
424,434Mar. 25, 1890E.W. SilverFeed-cutter
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