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| Patents for I. W. Coombs | |||||
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| Number | Date | Patentee | Title | Type | |
| 10,799 | Apr. 18, 1854 | J. Ballard | Slitting Gage | slitting gauges | |
| 12,767 | Apr. 24, 1855 | J.H. Thompson | Machine for Planing Metals | metal planers | |
| 15,913 | Oct. 14, 1856 | S. Ingersoll | Method of felling trees | reciprocating saws | |