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| Patents for Edward P. Allen | |||||
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| Number | Date | Patentee | Title | Type | |
| 139,407 | May 27, 1873 | E. McCoy | Improvement in Lubricators for Steam-Engines | steam engine lubricators | |
| 146,697 | Jan. 20, 1874 | E. McCoy | Improvement in Steam-Lubricators | steam engine lubricators | |