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| Patents for J. M. Lewis | |||||
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| Number | Date | Patentee | Title | Type | |
| 267,590 | Nov. 14, 1882 | A.O. Revenaugh | Bit and countersink | countersinks | |
| 458,413 | Aug. 25, 1891 | B. Brazelle | Steam-boiler | stationary boilers | |