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| Patents for W. J. Baldwin | |||||
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| Number | Date | Patentee | Title | Type | |
| 564,816 | Jul. 28, 1896 | J.V. Chamberlin, R. Aldrich | Wrench | quick adjust wrenches | |
| 570,934 | Nov. 10, 1896 | C. Weinstein, D. Kritcher | Combination Tool for Pipe Fitters | combination tools | |
| 639,785 | Dec. 26, 1899 | J.C. Speirs | Pipe Wrench | pipe wrenches | |