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| Patents for Walter N. Winberg | |||||
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| Number | Date | Patentee | Title | Type | |
| 755,319 | Mar. 22, 1904 | H.P. Schofield | Saw-sharpening machine | saw sharpening machines | |
| 781,958 | Feb. 07, 1905 | H.A. Knoke | Clamp | hand screws | |