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| Patents for A. Widder | |||||
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| Number | Date | Patentee | Title | Type | |
| 492,126 | Feb. 21, 1893 | C.W. Weiss | Igniter for Gas Engines | ignition systems | |
| 543,163 | Jul. 23, 1895 | C.W. Weiss | Explosive Engine | oil engines | |
| 543,165 | Jul. 23, 1895 | C.W. Weiss | Explosive Engine | oil engines | |