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| Patents for Safety Vapor Engine Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 495,281 | Apr. 11, 1893 | F.E. Tremper | Explosive Engine | ||
| 503,016 | Aug. 08, 1893 | F.E. Tremper | Electrical Igniting Device for Gas Engines | ignition systems | |