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All Patents in class 123/193.1 | |||||
Number | Date | Patentee | Title | Type | |
2,138,027 | Nov. 29, 1938 | J.L. Doll, C.W. Rogers | Internal combustion engine | ||
2,167,745 | Aug. 01, 1939 | H. Davids | Internal Combustion Engine | diesel engines | |
2,375,718 | May 08, 1945 | T.W. Ashcroft, W.G. Winkels | Crankcase Air-Pressure Control Means | internal combustion engines |