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| Patents for Findlay Steam Engine Manufactory | |||||
| Picture | Number | Date | Patentee | Title | |
| 7,252X | Oct. 25, 1832 | G. Hotchkiss | Re-acting water wheel | ||
![]() | FX-7,281 | Nov. 06, 1832 | G. Hotchkiss | Water wheel | |