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| Patents for Charles Hetherington | |||||
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| Number | Date | Patentee | Title | Type | |
| 741,018 | Oct. 13, 1903 | H.M. Dailey | Rotary engine | rotary steam engines | |
| CA-121,145 | Oct. 12, 1909 | C. Hetherington | Rotary engine | rotary engines | |