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Patents for Emil Zimmermann | |||||
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Picture | Number | Date | Patentee | Title | |
340,535 | Apr. 20, 1886 | E. Zimmermann | Work Support for Lathes | ||
![]() | 420,982 | Feb. 11, 1890 | G. Wunderle, A. Schmid, E. Zimmermann | Spiral lathe |