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| Patents for Oscar Gustafson | |||||
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| Number | Date | Patentee | Title | Type | |
| 452,907 | May 26, 1891 | O. Gustafson, E. Ohnstrano | Wrench | quick adjust wrenches | |
| 1,380,317 | May 31, 1921 | O. Gustafson | Tool Holder | lathe tool holders and tool posts | |