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| Patents for J. W. Coombs | |||||
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| Number | Date | Patentee | Title | Type | |
| 104,620 | Jun. 21, 1870 | E.H. Meigs | Improvement in Molders' Hammers | patternmaker | |
| 118,619 | Aug. 29, 1871 | J.W. Mahlon | Improvement in Wrenches | wrenches | |
| 120,266 | Oct. 24, 1871 | J.J. Grant | Improvement in Dies for Cutting Screw Threads | taps and dies | |