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| Patents for L. Newton Hopkins | |||||
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| Number | Date | Patentee | Title | Type | |
| 326,561 | Sep. 22, 1885 | L.N. Hopkins, G.M. Hopkins | Gas Engine | gas and gasoline engines | |
| 326,562 | Sep. 22, 1885 | L.N. Hopkins, G.M. Hopkins | Gas Engine | gas and gasoline engines | |