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| Patents for James Lefeber | |||||
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| Number | Date | Patentee | Title | Type | |
| 57,736 | Sep. 04, 1866 | J. Lefeber | Improvement in machines for tenoning spokes | tenoning machines | |
| 58,436 | Oct. 02, 1866 | J. Lefeber | Improvement in Hollow Augers | hollow bits | |