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| Patents for Solomon A. Campbell | |||||
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| Number | Date | Patentee | Title | Type | |
| 870,014 | Nov. 05, 1907 | S.A. Campbell | Tool | ratchet wrenches | |
| 1,371,350 | Mar. 15, 1921 | S.A. Campbell | Wrench | socket wrenches | |
| 1,489,696 | Apr. 08, 1924 | S.A. Campbell | Socket Wrench | socket wrenches | |