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Patents for Henry C. Hart | |||||
Number | Date | Patentee | Title | Type | |
569,918 | Oct. 20, 1896 | H.C. Hart | Gas Engine | gas and gasoline engines | |
588,061 | Aug. 10, 1897 | H.C. Hart | Gas Engine | gas and gasoline engines | |
588,062 | Aug. 10, 1897 | H.C. Hart | Gas Engine | gas and gasoline engines |