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| All Patents in class 173/37 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,951 | Dec. 05, 1848 | L.R. Bailey, J.T. Foster | Rock-Driller | stonemason | |
| 481,598 | Aug. 30, 1892 | W.X. Stevens | Rock-drilling machine | impact chisels and drills | |
| 1,252,374 | Jan. 01, 1918 | G.H. Gilman | Drilling Machine | ||