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| All Patents in class 29/DIG.74 | |||||
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| Number | Date | Patentee | Title | Type | |
| 41,419 | Feb. 02, 1864 | J.G. Baker | Improvement in Grinding Saws | tool making machines | |
| 288,717 | Nov. 20, 1883 | A.W. McIntyre | Machine for Grinding Car Wheels | grinding machines | |
| 465,376 | Dec. 15, 1891 | A. Johnston | Means for Grinding Cutlery or Other Articles | sharpening apparatus | |
| 1,187,302 | Jun. 13, 1916 | G. Gorton | Means for Increasing Cutter Efficiency | metal cutting circular saw blades | |