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| Patents for Pierre P. Fenaux | |||||
| Number | Date | Patentee | Title | Type | |
| 1,260,172 | Mar. 19, 1918 | P.P. Fenaux | Cutting Attachment for Lathes | metal lathe accessories and attachments | |
| 1,286,977 | Dec. 10, 1918 | P.P. Fenaux | Grinding Machine | grinding machines | |