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| All Patents in class 83/231 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,695 | Aug. 12, 1846 | J. Munsell | Hub mortiser | mortising machines | |
| 6,324 | Apr. 17, 1849 | G. McKay | Piston-valve cut-off | steam check valves | |
| 1,266,916 | May 21, 1918 | S. Bumpus | Sawing Machine | ||