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| Patents for Charles D. Curtis | |||||
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| Number | Date | Patentee | Title | Type | |
| 532,802 | Jan. 22, 1895 | E.C. Mershon | Saw-swage | saw swages | |
| 539,629 | May 21, 1895 | E.C. Mershon | Cross-head for band sawing-machines | bandsaws | |
| 547,796 | Oct. 15, 1895 | E.C. Mershon | Band-saw resawing-machine | band resaws | |
| 635,107 | Oct. 17, 1899 | E.C. Mershon | Attachment for edging or ripping saws | circular ripsaws | |