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| Patents for Martin J. Hogan | |||||
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| Number | Date | Patentee | Title | Type | |
| 842,786 | Jan. 29, 1907 | M.J. Hogan | Traction Engine | traction engine propulsion components | |
| 1,098,365 | May 26, 1914 | M.J. Hogan | Traction Engine | steam traction engines | |