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| Patents for M. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 54,187 | Apr. 24, 1866 | D.W. Maurice | Turning lathe | wood lathes | |
| 544,030 | Aug. 06, 1895 | W.R. Derr | Improved Frame for Heads and Bodies of Brushes | ||