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| All Patents in class 173/125 | |||||
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| Number | Date | Patentee | Title | Type | |
| 99,958 | Feb. 15, 1870 | T. Shaw | Improved Apparatus for Forging Metals | power hammers | |
| 605,544 | Jun. 14, 1898 | R.J. Good | Drop Hammer | drop hammers | |
| 1,268,270 | Jun. 04, 1918 | R.W. Nazel | Fluid-power hammer | drop hammers | |
| 2,031,535 | Feb. 18, 1936 | E. Kiecksee | Ram | handheld power hammers | |
| 4,483,402 | Nov. 20, 1984 | W. Vonhoff, Jr. | Paving breaker | ||