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| Patents for Charles A. Renwick | |||||
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| Number | Date | Patentee | Title | Type | |
| 152,487 | Jun. 30, 1874 | G.F. Hawley | Device for Centering Cylinders | ||
| 152,488 | Jun. 30, 1874 | G.F. Hawley | Improvement in Carpenters' Gages and Trams | marking gauges | |
| 195,900 | Oct. 09, 1877 | W.J. Perkins | Improvement in shingle-sawing machines | shingle machines | |
| 416,492 | Dec. 03, 1889 | S.W. Peregrine | Wood-working machine | specialty woodworking machines | |