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| All Patents in class 184/11.4 | |||||
| Picture | Number | Date | Patentee | Title | |
| 634,529 | Oct. 10, 1899 | A. Lee | Gas Engine | ||
![]() | 710,026 | Sep. 30, 1902 | C.W. Weiss | Lubricator for Explosive Engines | |
| 2,449,227 | Sep. 14, 1948 | F.G. Hobart | Crankcase Oil Thrower and Crank Pin Lubricating Device | ||