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| All Patents in class 314/134 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,217,911 | Mar. 06, 1917 | H.C. Brown | Drill mechanism | combined anvil vises and drills | |
| 1,827,245 | Oct. 13, 1931 | C.C. Peck, J.F. Lincoln | Arc Welding | welding machines | |