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| Patents for Melker W. Schillberg | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,214,225 | Jan. 30, 1917 | M.W. Schillberg | Tool Holder | lathe tool holders and tool posts | |
| 1,342,600 | Jun. 08, 1920 | M.W. Schillberg | Tool Holder | lathe tool holders and tool posts | |