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Patents for Christian Winkler | |||||
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Picture | Number | Date | Patentee | Title | |
994,965 | Jun. 13, 1911 | C. Winkler | Planer Head | ||
1,009,005 | Nov. 14, 1911 | C. Winkler | Duplex Tool Support | ||
1,420,600 | Jun. 20, 1922 | C. Winkler | Key Seating Machine |