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Patents for Covel Manufacturing Co.
Patents 1 - 5 of 5
First set of recordsLast set of records
319,794Jun. 09, 1885M. CovelSaw sharpening machinesaw sharpening machines
755,319Mar. 22, 1904H.P. SchofieldSaw-sharpening machinesaw sharpening machines
815,269Mar. 13, 1906W.L. CovelSaw Swaging Machinesaw swages
934,046Sep. 14, 1909W.L. CovelSaw Swaging Machinesaw swages
1,260,974Mar. 26, 1918E.C. FilstrupSaw Grinding Machinesaw sharpening machines
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