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| Patents for Carl G. Ertell | |||||
| Number | Date | Patentee | Title | Type | |
| 2,650,512 | Sep. 01, 1953 | C.G. Ertell, W.J. Johnson | Pipe Wrench with Nut Fulcrumed Pivoted Outer Jaw | pipe wrenches | |
| 2,656,751 | Oct. 27, 1953 | C.G. Ertell, W.J. Johnson | Replaceable Jaw Insert for Pipe Wrenches | wrench jaw components | |