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| All Patents in class 474/47 | |||||
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| Number | Date | Patentee | Title | Type | |
| 143,232 | Sep. 30, 1873 | G. Spire, A.H. Frank | Improvement in planing-machines | wood planers | |
| 890,334 | Jun. 09, 1908 | N.D. Chard, M. Shipley | Variable-speed mechanism | metalworking variable speed mechanisms | |