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| Patents for Zeh & Hahnemann Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 833,716 | Oct. 16, 1906 | P.R. Hahnemann | Sheet-metal hollow-ware drawing-press | stamping presses | |
| 1,349,033 | Aug. 10, 1920 | E.W. Zeh | Power-press | stamping presses | |