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Patents for George Hill | |||||
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Picture | Number | Date | Patentee | Title | |
4,825X | Jul. 21, 1827 | E. Mann, G. Hill | Portable crane for raising brick, etc. | ||
![]() | 466,564 | Jan. 05, 1892 | S.E. Hall | Wrench | |
![]() | 643,313 | Feb. 13, 1900 | F. Witzmann | Hand-Planer |