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| Patents for Monitor Vapor Engine & Power Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 538,855 | May 07, 1895 | L.G. Woolley | Fire Stop for Combustible Vapor Engines | cooling apparatus | |
| 599,653 | Feb. 22, 1898 | R.B. Hain | Multiple Cylinder Vapor Engine | gas and gasoline engines | |
| 607,992 | Jul. 26, 1898 | R.B. Hain | Igniter for Gas Engines | ignition systems | |