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| Patents for A. E. H. Johnson | |||||
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| Number | Title | Classification(s) | |||
| 138,932 | Improvement in Wrenches | 81/145, 81/173, 81/DIG4 | |||
| 203,774 | Wrench Attachment | 30/102, 81/182, 81/184, 81/97 | |||
| 241,881 | Wrench | 81/129.5, 81/134, 81/173, 81/176.1, 81/DIG4 | |||