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| Patents for John L. Barbour | |||||
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| Number | Date | Patentee | Title | Type | |
| 421,154 | Feb. 11, 1890 | G.F. Shevlin, J.H. Baker | Wrench | pipe wrenches | |
| 612,227 | Oct. 11, 1898 | J.H. Baker, F.H. Baker, G.F. Shevlin | Wood-barking machine | bark processing machines | |