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| Patents for James Watson | |||||
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| Number | Date | Patentee | Title | Type | |
| 98,821 | Jan. 11, 1870 | J. Watson | Milling Machine | milling machines | |
| 100,473 | Mar. 01, 1870 | J. Watson | Lathe | metal lathes | |
| 105,336 | Jul. 12, 1870 | J.J. Hull | Nut-Wrench | screw adjust wrenches | |