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| Patents for Frank G. Marbach | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 718,266 | Jan. 13, 1903 | F.G. Marbach | Vernier and Micrometer Calipers | |
![]() | 805,480 | Nov. 28, 1905 | F.G. Marbach | Micrometer | |
![]() | 820,807 | May 15, 1906 | F.G. Marbach | Micrometer Calipers | |