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| Patents for Hathorn Foundry & Machine Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 758,361 | Apr. 26, 1904 | H.W. Hathorn | Power Hammer | trip and helve hammers | |
| CA-89,850 | Nov. 01, 1904 | H.W. Hathorn | Marteau Mecanique | trip and helve hammers | |