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Patents for John H. Hall | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 1,515X | May 21, 1811 | J.H. Hall, W. Thornton | Firearms | |
![]() | 1,516X | May 21, 1811 | J.H. Hall, W. Thornton | Firearms | |
4,699X | Mar. 07, 1827 | J.H. Hall | Machine for Cutting Metallic and Other Hard Surfaces |