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| All Patents in class 92/133 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 335,892 | Feb. 09, 1886 | J.P. Kern, J.C. Cosford | Steam Engine Governor | ||
| 719,242 | Jan. 27, 1903 | G.E. Martin | Riveting Machine | ||
| 1,702,550 | Feb. 19, 1929 | F.E. Stevenson | Hydraulic Reducing Valve | ||