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Patents for E. C. Davidson | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 189,681 | Apr. 17, 1877 | J. Barnes, W.F. Barnes | Improvement in sawing-machines | |
![]() | 321,853 | Jul. 07, 1885 | S.G. Randall | Mortiser-cutter | |
![]() | 352,705 | Nov. 16, 1886 | P. Medart | Machine for straightening metal bars or pipes |