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| All Patents in class 72/466.9 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | RE4,470 | Jul. 18, 1871 | J.C. Butterfield, J. Hay | Improvement in trip-hammers | |
| 138,617 | May 06, 1873 | H.M. Crippen | Swaging Machines | ||
| 173,510 | Feb. 15, 1876 | E.J. Soligny | Machine for Embossing and Chasing Metal | ||
 | 429,807 | Jun. 10, 1890 | P.D. Dupont | Power-hammer spring | |
| 454,824 | Jun. 23, 1891 | W. Jones | Power Hammer | ||
| 1,042,961 | Oct. 29, 1912 | E.M. Patten | Trip Hammer | ||