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| Patents for Clark Sintz | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 383,775 | May 29, 1888 | C. Sintz | Gas Engine | |
 | 416,649 | Dec. 03, 1889 | C. Sintz | Gas Engine | |
| 426,337 | Apr. 22, 1890 | C. Sintz | Gas Engine | ||
| 646,322 | Mar. 27, 1900 | C. Sintz | Explosive Engine | ||