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| Patents for Walter J. Sumner | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,150,155 | Aug. 17, 1915 | W.J. Sumner | Wood-polishing machine | sanding machines | |
| 1,192,950 | Aug. 01, 1916 | W.J. Sumner | Wood-polishing machine | sanding machines | |