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| Patents for Henry Manthey | |||||
| Number | Date | Patentee | Title | Type | |
| 1,192,793 | Jul. 25, 1916 | H. Manthey | Clutch | harvesters | |
| 1,287,380 | Dec. 10, 1918 | H. Manthey | Charge Forming Device for Internal Combustion Engine | carburetors | |
| 1,303,703 | May 13, 1919 | H. Manthey | Charge Forming Device for Internal Combustion Engine | carburetors | |