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| Patents for C. S. Sundgren | |||||
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| Number | Date | Patentee | Title | Type | |
| 688,511 | Dec. 10, 1901 | A.M. Hall, C.C. Stuart | Sandpapering-machine | sanding machines | |
| 938,334 | Oct. 26, 1909 | G.H. Powell | Pivoted Jaw Tool | ||