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| Patents for John T. Cowie | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-103,814 | Feb. 26, 1907 | J.T. Cowie | Two cycle engine | gas and gasoline engines | |
| CA-112,035 | May 19, 1908 | J.T. Cowie, H. Schaake | Spark timers for internal combustion engines | ignition systems | |
| CA-114,932 | Nov. 03, 1908 | H. Schaake, J.T. Cowie | Sparker mechanism for internal combustion engines | ignition systems | |