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| Patents for Wilbur A. Leonard | |||||
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| Picture | Number | Date | Patentee | Title | |
| 551,213 | Dec. 10, 1895 | W.A. Leonard | Friction Clutch | ||
 | 873,441 | Dec. 10, 1907 | W.A. Leonard | Reversing tap-holder | |
| 876,723 | Jan. 14, 1908 | W.A. Leonard | Tap Holder | ||
| 976,270 | Nov. 22, 1910 | W.A. Leonard | Die Grinder | ||