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| Patents for Frederick W. Toedt | |||||
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| Number | Date | Patentee | Title | Type | |
| 650,549 | May 29, 1900 | F.W. Toedt | Gas Engine | gas and gasoline engines | |
| 651,216 | Jun. 05, 1900 | F.W. Toedt | Gas Engine | gas and gasoline engines | |