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| All Patents in class 92/150 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,245,810 | Jun. 17, 1941 | J.W. Owens | Fabricated Engine Frame Structure | opposed piston engines | |
| 2,246,857 | Jun. 24, 1941 | H. Davids, J.W. Owens | Engine Frame Construction | diesel engines | |
| 2,368,187 | Jan. 30, 1945 | L.E. Williams | Pump | ||