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| All Patents in class 72/85 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 4,924 | Jan. 13, 1847 | A. Heaton | Spinning Sheet Metal | |
| 88,885 | Apr. 13, 1869 | J.L. Mason | Screw Forming Machine | ||
| 557,791 | Apr. 07, 1896 | J. Findlay | Machine for Making Seamless Tapered Tubes | ||
| 2,932,890 | Apr. 19, 1960 | B. Sassan, C.L. Sporck | Metal Working | ||
| 3,055,327 | Sep. 25, 1962 | C.L. Sporck | Metal Working | ||