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| All Patents in class 92/157 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,463,305 | Jul. 31, 1923 | S.D. Black, A.G. Decker | Pumping apparatus | |
| 2,386,117 | Oct. 02, 1945 | R.M. Hvid | Engine Piston Construction | ||
| 2,407,429 | Sep. 10, 1946 | J. Kuttner | Wrist Pin Assembly | ||
 | 2,418,901 | Apr. 15, 1947 | E.C. Read | Crosshead and guide structure | |
| 2,566,080 | Aug. 28, 1951 | J.H. Davids | Bushing Assembly | ||
| 2,687,930 | Aug. 31, 1954 | G.L. Smith | Piston for Internal Combustion Engines | ||