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| Patents for Oliver Longval | |||||
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| Number | Date | Patentee | Title | Type | |
| 444,897 | Jan. 20, 1891 | O. Longval | Oiling Device for Bench Planes | plane oilers | |
| 471,391 | Mar. 22, 1892 | O. Longval | Oiling Device for Bench Planes | plane oilers | |