Patents for E. C. Davidson


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Patents for E. C. Davidson
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
189,681	Apr. 17, 1877	W.F. Barnes, J. Barnes	Improvement in sawing-machines	human powered machines
321,853	Jul. 07, 1885	S.G. Randall	Mortiser-cutter	mortising machines
352,705	Nov. 16, 1886	P. Medart	Machine for straightening metal bars or pipes	metal straightening machines