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| Patents for R. C. Manville | |||||
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| Number | Date | Patentee | Title | Type | |
| 146,539 | Jan. 20, 1874 | E.J. Manville | Reversing Gearings for Metal-Planers | metal planers | |
| 304,945 | Sep. 09, 1884 | E.J. Manville | Screw Threading Machine | metal threading machines | |