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| Patents for J. A. Bergstrom | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 497,618 | May 16, 1893 | F.B. Wells | Wrench | |
 | 512,911 | Jan. 16, 1894 | H. Shogren | Tool Holder | |
 | 521,123 | Jun. 05, 1894 | A. McCallum | Wrench | |
 | 527,643 | Oct. 16, 1894 | A.L. Winge | Wrench | |