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| Patents for Joseph Ledward | |||||
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| Picture | Number | Date | Patentee | Title | |
| 297,816 | Apr. 29, 1884 | J. Ledward | Saw | ||
| 309,550 | Dec. 23, 1884 | J. Ledward | Saw | ||
| 312,133 | Feb. 10, 1885 | J. Ledward | Saw | ||
| 325,679 | Sep. 08, 1885 | J. Ledward | Saw | ||