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| Patents for O. F. Geyer | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 861,498 | Jul. 30, 1907 | E.T. Brown | Tool-handle | |
![]() | 931,327 | Aug. 17, 1909 | C.W. Manzel | Drill Chuck | |
![]() | 967,640 | Aug. 16, 1910 | M.H. Johnson | Hacksaw Machine | |