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| Patents for Carl Gubler | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,118,433 | Nov. 24, 1914 | H. Meyer-Delius | Compensating winding for polyphase commutating-machines with drum-armatures | |
| 1,266,839 | May 21, 1918 | M. Maag | Gear Cutting Machine | ||
 | 1,270,183 | Jun. 18, 1918 | M. Maag | Gear Cutting Machine | |