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| All Patents in class 74/102 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 7,412X | Feb. 06, 1833 | F. Krieg | Pump | ||
 | 9,003X | Aug. 15, 1835 | J. Turner | Churn | |
| 5,774 | Sep. 19, 1848 | L. Kirk | Steam Hammer | ||
 | 3,004,458 | Oct. 17, 1961 | J.R. Dvorak | Hydraulic powered oscillating shear | |