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Patents for J. H. Schumway | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 309,400 | Dec. 16, 1884 | G.D. Mosher | Birmingham Batwing Cast Iron Benchplane | |
![]() | 377,645 | Feb. 07, 1888 | J.H. Shaw | Lateral Lever | |
![]() | 493,903 | Mar. 21, 1893 | G.W. Wright | Blockplane Lateral Adjuster |