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| Patents for C. H. McEwen | |||||
| Number | Date | Patentee | Title | Type | |
| 184,136 | Nov. 07, 1876 | C. Bliven | Improvement in planing and sawing machines | wood planers | |
| 780,381 | Jan. 17, 1905 | D.A. Reavill | Panoramic Camera | panoramic cameras | |