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| Patents for W. J. Baldwin | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 564,816 | Jul. 28, 1896 | J.V. Chamberlin, R. Aldrich | Wrench | |
![]() | 570,934 | Nov. 10, 1896 | C. Weinstein, D. Kritcher | Combination Tool for Pipe Fitters | |
![]() | 639,785 | Dec. 26, 1899 | J.C. Speirs | Pipe Wrench | |