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| Patents for Anna Rosenthal | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,342,891 | Jun. 08, 1920 | O. Bergstrom | Quick-acting frame-clamping machine | |
 | 1,342,892 | Jun. 08, 1920 | O. Bergstrom | Miter-frame clamp | |