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| Patents for E. F. Dewey | |||||
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| Number | Date | Patentee | Title | Type | |
| 61,893 | Feb. 05, 1867 | J.B. Sweetland | Improvement in sawing machines | circular sawmills | |
| 233,755 | Oct. 26, 1880 | W.E. Hill | Machine for rolling and turning logs | sawmill log handling | |