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| All Patents in class 81/392 | |||||
| Number | Date | Patentee | Title | Type | |
| 139,520 | Jun. 03, 1873 | J. Rigg | Improved Adjustable Pipe Wrench | pliers type wrenches | |
| 2,341,489 | Feb. 08, 1944 | J.E. Törnburg | Jawed Tool | locking pliers | |