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| Patents for Charles Jacobson | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 506,954 | Oct. 17, 1893 | J.G. Timolat, C. Jacobson | Portable drill | |
 | 586,312 | Jul. 13, 1897 | C. Jacobson | Gas Engine | |
 | 607,566 | Jul. 19, 1898 | C. Jacobson | Gas Engine | |