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| All Patents in class 408/145 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,399 | Apr. 24, 1849 | C. Foss | Machine for making grindstones | ||
| 134,506 | Jan. 07, 1873 | A. Ball | Guides for Rotary Rock Drills | stone boring and drilling machines | |
| 467,937 | Feb. 02, 1892 | E.E. Winkley, E.H. Kavanagh | Stone Working Machine | stoneworking tools | |
| 779,931 | Jan. 10, 1905 | A.T. Allcock, W. Harker | Boring Machine | horizontal boring mills | |