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| Patents for Emil Zimmermann | |||||
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| Number | Date | Patentee | Title | Type | |
| 340,535 | Apr. 20, 1886 | E. Zimmermann | Work Support for Lathes | metal lathe accessories and attachments | |
| 420,982 | Feb. 11, 1890 | G. Wunderle, A. Schmid, E. Zimmermann | Spiral lathe | rope and spiral cutting machines | |