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| Patents for J. S. Ewin | |||||
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| Number | Date | Patentee | Title | Type | |
| 62,948 | Mar. 19, 1867 | J.E. Emerson | Improvement in saw-gumming machines | tool making machines | |
| 63,057 | Mar. 19, 1867 | P.H. Kells | Improved brick-machine | manufacturing bricks and tiles | |