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| All Patents in class 72/43 | |||||
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| Number | Date | Patentee | Title | Type | |
| 78,867 | Jun. 16, 1868 | J. Duff | Drop Hammer | drop hammers | |
| 1,348,969 | Aug. 10, 1920 | H. Terhune | Drop Hammer | drop hammers | |
| 1,355,291 | Oct. 12, 1920 | H.C. Urbaner | Power Hammer | power hammers | |
| 3,017,016 | Jan. 16, 1962 | L.D. Mersek, W.A. Ehlert | Wire Drawing Apparatus | wire drawing machines | |