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| All Patents in class 417/494 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,136,466 | Nov. 15, 1938 | F. Ritz | Fuel Supply System | fuel pumps | |
| 2,438,251 | Mar. 23, 1948 | T. Pedersen | Engine Fuel Supply Means | fuel injection apparatus | |
| 2,485,033 | Oct. 18, 1949 | H.F. Budzien | Fuel Injection Pump | fuel injection apparatus | |