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| Patents for Francis M. Bookwalter | |||||
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| Picture | Number | Date | Patentee | Title | |
| 461,565 | Oct. 20, 1891 | F.M. Bookwalter, J.W. Bookwalter | Water Wheel | ||
| 469,959 | Mar. 01, 1892 | F.M. Bookwalter | Water Wheel | ||
| 509,863 | Dec. 05, 1893 | F.M. Bookwalter | Water Wheel | ||