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| All Patents in class 173/126 | |||||
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| Number | Date | Patentee | Title | Type | |
| 156,276 | Oct. 27, 1874 | J.C. Butterfield | Improvement in power-hammers | drop hammers | |
| 639,538 | Dec. 19, 1899 | H.G. Dittbenner | Power-hammer | drop hammers | |
| RE12,990 | Jul. 13, 1909 | J. Pryke, J.T. Rawsthorne | Pantograph Engraving Machine | metal engraving machines | |
| 1,356,297 | Oct. 19, 1920 | A.T. Lochner | Power-hammer | ||
| 1,889,441 | Nov. 29, 1932 | J.F. Haas | Combined rotary and reciprocatory drill | handheld power drills | |
| 3,022,838 | Feb. 27, 1962 | W.F. Mitchell | Portable hammer | ||