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| Patents for Magnus W. Mattison | |||||
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| Number | Date | Patentee | Title | Type | |
| 723,207 | Mar. 17, 1903 | M.W. Mattison | Rotary cutter-head | cutterheads | |
| 1,222,783 | Apr. 17, 1917 | M.W. Mattison | Cutter-head | cutterheads | |