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| Patents for Sebastian J. Welter | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,621,226 | Mar. 15, 1927 | S.J. Welter | Milling cutter | |
| 1,653,326 | Dec. 20, 1927 | S.J. Welter | Chain Pipe Vise | ||
 | 2,078,475 | Apr. 27, 1937 | S.J. Welter | Tool Holder | |
 | 2,211,039 | Aug. 13, 1940 | S.J. Welter | Thread Cutting Tool Holder | |