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| Patents for Percival F. King | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,438,442 | Dec. 12, 1922 | P.F. King | Plier Wrench | pliers | |
| 1,517,162 | Nov. 25, 1924 | P.F. King | Plier Wrench | pliers | |
| 1,588,475 | Jun. 15, 1926 | P.F. King | Plier Wrench | pliers | |