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| Patents for J. Ross Colhoun | |||||
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| Number | Date | Patentee | Title | Type | |
| 749,827 | Jan. 19, 1904 | E.O. Sjolander | Cutter Adjustment with Depth Scale | plane blades | |
| 909,759 | Jan. 12, 1909 | F.W. Crocker | Engraver's Spoon Clamp | jeweler | |