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| Patents for E. P. Allen | |||||
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| Number | Date | Patentee | Title | Type | |
| 130,305 | Aug. 06, 1872 | E. McCoy | Improvement in Lubricators for Steam-Engines | steam engine lubricators | |
| 159,561 | Feb. 09, 1875 | A. Button | Combined-Tool | combination tools | |