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| All Patents of Type: cylinder heads | |||||
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| Number | Date | Patentee | Title | Type | |
| 599,376 | Feb. 22, 1898 | W.E. White | Gas Engine Attachment | cylinder heads | |
| 1,791,443 | Feb. 03, 1931 | C.A. Bjornnson, C.P. Clark | Fuel Injection Mechanism and Method | cylinder heads | |
| 1,830,321 | Nov. 03, 1931 | A.W. Hubbell | Internal Combustion Engine | cylinder heads | |
| 2,334,146 | Nov. 09, 1943 | D.P. Davies | Turbulence Cylinder Head | cylinder heads | |