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| Patents for James M. Watson | |||||
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| Number | Date | Patentee | Title | Type | |
| 190,731 | May 15, 1877 | W. Bayley | Improvement in barrel-trussing machines | barrel making machines | |
| 554,157 | Feb. 04, 1896 | J.M. Watson | Wrench | pipe wrenches | |