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| All Patents of Type: external combustion engines | |||||
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| Number | Date | Patentee | Title | Type | |
| 419,805 | Jan. 21, 1890 | C.W. Weiss | Thermo Dynamic Motor | external combustion engines | |
| 581,826 | May 04, 1897 | W.H. Knight | Fluid Pressure Engine | external combustion engines | |
| 582,231 | May 11, 1897 | F.M. Rites | Governor for Fluid Pressure Engines | external combustion engines | |
| 582,232 | May 11, 1897 | F.M. Rites | Pressure Engine | external combustion engines | |