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| Patents for Ferdinand Schwedtmann | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 603,709 | May 10, 1898 | F. Schwedtmann | Dynamo or motor | |
 | 620,609 | Mar. 07, 1899 | F. Schwedtmann, E.S. Pillsbury | Motor | |