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