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Patents for E. C. Davidson
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
189,681Apr. 17, 1877J. Barnes, W.F. BarnesImprovement in sawing-machines
321,853Jul. 07, 1885S.G. RandallMortiser-cutter
352,705Nov. 16, 1886P. MedartMachine for straightening metal bars or pipes
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