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| Patents for William H. Ewing | |||||
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| Number | Date | Patentee | Title | Type | |
| 188,787 | Mar. 27, 1877 | W.H. Ewing | Improvement in machines for setting up barrels | barrel making machines | |
| 188,880 | Mar. 27, 1877 | W.H. Ewing | Improvement in machines for setting up barrels | barrel making machines | |