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| Patents for Charles P. Leavitt | |||||
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| Number | Date | Patentee | Title | Type | |
| 118,028 | Aug. 15, 1871 | C.P. Leavitt | Improvement in Gas Engines | gas and gasoline engines | |
| 133,649 | Dec. 03, 1872 | C.P. Leavitt | Hot Air Engines | hot air engines | |