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| Patents for P. D. Kerner | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,013,980 | Jan. 09, 1912 | O.C. Wysong | Belt sandpapering-machine | belt sanders | |
| 1,082,670 | Dec. 30, 1913 | O.C. Wysong | Method of polishing curved surfaces | sanding machines | |