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| Patents for William Pearce | |||||
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| Number | Date | Patentee | Title | Type | |
| 470,702 | Mar. 15, 1892 | W. Pearce | Horseshoe Calk | auxiliary wrenches | |
| 616,803 | Dec. 27, 1898 | W. Pearce, G. Walker | Nail-puller | nail extractors | |
| 700,440 | May 20, 1902 | W. Pearce | Nail Puller | nail extractors | |