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| Patents for M. A. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 981,159 | Jan. 10, 1911 | E.J. Bein | Surfacing-machine | sanding machines | |
| 1,001,229 | Aug. 22, 1911 | J.W. Hallard, W.H. Stuart | Combination Square and Bevel | bevels | |
| 1,005,883 | Oct. 17, 1911 | E. Challet, P. Roch | Instument for Making Micrometric Measurements | measurement gauges | |