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| Patents for Alex. Selkirk | |||||
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| Number | Date | Patentee | Title | Type | |
| 117,786 | Aug. 08, 1871 | D.S. Kniffen | Improvement in Plug-Cutters for Wood-Workers | hollow bits | |
| 303,127 | Aug. 05, 1884 | C. Croissant | Saw set | saw sets | |
| 407,285 | Jul. 16, 1889 | C. Ensminger | Combined Square, Level, Protractor, &c. | combination tools | |