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| Patents for C. H. Walker | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 672,498 | Apr. 23, 1901 | A. Tothill | Sawing Machine | |
 | 747,013 | Dec. 15, 1903 | A.W. Snyder | Pipe Wrench | |
 | 748,011 | Dec. 29, 1903 | W. Remington | Feeding and Ingniting Device for Explosive Engines | |
| 1,004,651 | Oct. 03, 1911 | M. Olson, E.S. Bradford, Jr. | Power Hacksaw | ||