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| Patents for Charles R. Alsop | |||||
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| Picture | Number | Date | Patentee | Title | |
| 7,377X | Jan. 21, 1833 | C.R. Alsop | Rotary steam engine | ||
| 7,378X | Jan. 21, 1833 | C.R. Alsop | Elevating and projecting water and other liquids | ||
| 618,972 | Feb. 07, 1899 | C.R. Alsop | Gas Engine | ||
| 640,252 | Jan. 02, 1900 | C.R. Alsop | Igniter for Gas Engines | ||