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| Patents for J. M. Wynkoop | |||||
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| Number | Date | Patentee | Title | Type | |
| 912,507 | Feb. 16, 1909 | P.G. Tacchi | Spanner or the Like | wrench handle components | |
| 933,834 | Sep. 14, 1909 | H.M. Lourie, H.T. Henderson | Tire Setting Machine | steel tire shrinkers | |
| 1,079,878 | Nov. 25, 1913 | J. Reid, W.O. Platt | Vaporizer and Igniter for Internal Combustion Engines | ignition systems | |
| 1,121,201 | Dec. 15, 1914 | W.O. Platt | Governor | internal combustion engine governors | |