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| Patents for John Watts | |||||
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| Number | Date | Patentee | Title | Type | |
| 265,652 | Oct. 10, 1882 | H. Aylesbury | Band sawing-machines | bandsaws | |
| 281,442 | Jul. 17, 1883 | W.D. Bradt | Router-bit | machine and tool cutters | |
| 290,274 | Dec. 18, 1883 | H. Segur | Carpet Stretcher | carpet stretchers | |