| All Patents in class 92/157 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 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 | pistons |
| 2,407,429 | Sep. 10, 1946 | J. Kuttner | Wrist Pin Assembly | internal combustion engines |
| 2,418,901 | Apr. 15, 1947 | E.C. Read | Crosshead and guide structure | steam 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 |
