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| Patents for J. W. Hamilton Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 130,778 | Aug. 20, 1872 | C.C. Wolcott | Improvement in Nippers for Fastening Telegraph Wires | pliers | |
| 203,774 | May 14, 1878 | H.F. Read | Wrench Attachment | pipe jaw attachments for wrenches | |
| 241,881 | May 24, 1881 | H.F. Read | Wrench | nut wrenches | |