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| Patents for Gustav David Sundstrand | |||||
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| Number | Date | Patentee | Title | Type | |
| RE14,237 | Dec. 26, 1916 | G.D. Sundstrand | Adding and listing machine | ||
| 1,697,698 | Jan. 01, 1929 | G.D. Sundstrand | Milling Machine | milling machines | |
| 1,717,899 | Jun. 18, 1929 | G.D. Sundstrand | Grinding Machine | internal grinders | |
| 1,843,345 | Feb. 02, 1932 | G.D. Sundstrand | Continuous Milling Machine | milling machines | |
| 2,011,836 | Aug. 20, 1935 | G.D. Sundstrand | Machine Tool | milling machines | |