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| Patents for Fred Curtis | |||||
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| Number | Title | Classification(s) | |||
| 76,656 | Machinists' Vise | 269/160, 269/247, 269/258 | |||
| 115,324 | Improvement in Chucks for Watchmakers' Lathes | 279/14 | |||
| 119,280 | Improvement in Vises | 269/212, 269/238, 269/4 | |||
| 138,528 | Combined Watch-Key and Screw-driver | 7/167 | |||