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Patents for George W. Hael | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 303,003 | Aug. 05, 1884 | G.W. Hael | Screw holding screwdriver | |
![]() | 306,394 | Oct. 14, 1884 | G.W. Hael | Screw holding screwdriver |