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| Patents for Doehler Die Casting Co. | |||||
| Picture | Number | Date | Patentee | Title | |
| 1,121,886 | Dec. 22, 1914 | A.K. Wittlinger | Attachment for Power Presses | ||
| 2,069,299 | Feb. 02, 1937 | H.W. Bartholomew | Milling Machine | ||
| RE20,893 | Oct. 25, 1938 | H.W. Bartholomew | Milling Machine | ||