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| Patents for William Holmes | |||||
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| Picture | Number | Date | Patentee | Title | |
| 3,191X | Apr. 04, 1820 | W. Holmes | Twisted screw auger for boring guns | ||
| 4,589X | Nov. 26, 1826 | W. Holmes, S.C. Mott | Grate and blower for Lehigh coal | ||
 | 141,036 | Jul. 22, 1873 | S. Cook | Improvement in saws | |
 | 320,550 | Jun. 23, 1885 | J.W. McAuley, G.S. Gardiner | Saw-guide | |
 | 554,994 | Feb. 18, 1896 | W. Holmes, P.D. Dye | Pipe and Nut Wrench | |