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Patents for J. C. Downing | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 17,657 | Jun. 23, 1857 | T.D. Worrall | Cutter with Dovetailed Fastening | |
![]() | 473,234 | Apr. 19, 1892 | W.G. Munn, E. Christman | Grain-drill |