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| Patents for Richard Walker | |||||
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| Picture | Number | Date | Patentee | Title | |
| 7,482X | Mar. 12, 1833 | R. Walker | Water wheel and applying water thereto | ||
| 8,264X | Jun. 17, 1834 | L.V. Badger, R. Walker | Windlass | ||
| 5,149 | Jun. 12, 1847 | R. Walker | File Cutting Machine | ||
 | 51,765 | Dec. 26, 1865 | R. Walker | Spoke Gage | |