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| Patents for J. W. Holcomb | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 194,221 | Aug. 14, 1877 | F.S. Clarkson | Improvement in cutter-heads for grooving and channeling | |
 | 249,477 | Nov. 15, 1881 | A. Nelson | Wrench | |
| 329,647 | Nov. 03, 1885 | F. Holland | Carving-machine | ||