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| Patents for A. K. Hood | |||||
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| Number | Date | Patentee | Title | Type | |
| 715,582 | Dec. 09, 1902 | H.D. Waterhouse, F.B. Jacobs | Test Indicator | test indicators | |
| 803,942 | Nov. 07, 1905 | J.H. Vinton | Pipe Wrench | pipe wrenches | |
| 850,254 | Apr. 16, 1907 | E.J. Robbins | Pipe Wrench | pipe wrenches | |