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| Patents for A. E. H. Johnson | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 138,932 | May 13, 1873 | H.F. Read | Improvement in Wrenches | |
 | 203,774 | May 14, 1878 | H.F. Read | Wrench Attachment | |
 | 241,881 | May 24, 1881 | H.F. Read | Wrench | |