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| All Patents in class 451/132 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 41,419 | Feb. 02, 1864 | J.G. Baker | Improvement in Grinding Saws | |
| 283,685 | Aug. 21, 1883 | F. Trier | Lathe for Dressing Stone | ||
| 313,581 | Mar. 10, 1885 | H. Fairbrother | Machine for Dressing Saw Teeth | ||
 | 558,641 | Apr. 21, 1896 | G.A. Ensign | Polishing-machine | |
 | 667,924 | Feb. 12, 1901 | H.P. Schofield, L.L. Filstrup | Saw-sharpening machine | |
 | 889,468 | Jun. 02, 1908 | F.L. Lane | Sanding-machine | |
 | 1,123,871 | Jan. 05, 1915 | A.L. Hatfield | Machine for sharpening safety-razor blades | |