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| All Patents in class 165/52 | |||||
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| Number | Date | Patentee | Title | Type | |
| 644,027 | Feb. 20, 1900 | W. Baines | Hydrocarbon-Vaporizer for Explosive-Engines | fuel systems | |
| 1,417,804 | May 30, 1922 | D.P. Davies | Internal Combustion Engine | fuel primers | |