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| All Patents in class 92/187 | |||||
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| Number | Date | Patentee | Title | Type | |
| 97,231 | Nov. 23, 1869 | J.B. Root | Steam Engine | steam engines | |
| 782,957 | Feb. 21, 1905 | H.J. Fischer | Dash Pot | dash pots | |
| 2,407,429 | Sep. 10, 1946 | J. Kuttner | Wrist Pin Assembly | internal combustion engines | |
| 2,566,080 | Aug. 28, 1951 | J.H. Davids | Bushing Assembly | industrial machine bearings | |
| 2,687,930 | Aug. 31, 1954 | G.L. Smith | Piston for Internal Combustion Engines | pistons | |
| 3,802,323 | Apr. 09, 1974 | S. W | Piston and piston rod assembly for hydraulic jack | hydraulic jacks | |