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| Patents for Eber C. Preble | |||||
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| Number | Date | Patentee | Title | Type | |
| 48,030 | May 30, 1865 | H.H. Scoville, Jr. | Improved amalgamator | ore processing apparatus | |
| 217,238 | Jul. 08, 1879 | E.C. Preble, J.A. Peoples | Improvement in wood-planing machines | wood planers | |
| CA-134,713 | Aug. 01, 1911 | E.C. Preble | Gas heater | heaters | |