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| Patents for Norton L. Upson | |||||
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| Number | Date | Patentee | Title | Type | |
| 894,851 | Aug. 04, 1908 | D.S. Oakley | Abrasive finishing-machine | belt sanders | |
| 927,066 | Jul. 06, 1909 | D.S. Oakley | Belt abrasive-machine | belt sanders | |