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| Patents for Michael F. McMahon | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 239,933 | Apr. 12, 1881 | T.F. Carver | Friction-clutch | |
 | 257,883 | May 16, 1882 | M.F. McMahon | Lathe tail-stock | |
 | 520,447 | May 29, 1894 | T.F. Carver, M.F. McMahon | Clutch | |
 | 712,575 | Nov. 04, 1902 | M.F. McMahon | Friction-clutch | |
 | 842,575 | Jan. 29, 1907 | M.F. McMahon | Self-retaining adjusting means for clutch-actuating draft-bolts | |
 | 851,956 | Apr. 30, 1907 | M.F. McMahon | Friction-clutch for automobiles and other purposes | |