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| All Patents in class 123/27GE | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,927,569 | Mar. 08, 1960 | L.J. Grauel | Engine Air Supply Control | air supply apparatus | |
| 2,987,055 | Jun. 06, 1961 | C.E. Nilson, L.J. Grauel | Combustion Air Supply Control for Internal Combustion Engines | air supply apparatus | |
| 3,407,790 | Oct. 29, 1968 | M.L. Foreman, A.K. Antonsen | Uniflow Scavenged Engine Having Improved Gaseous Fuel Admission | internal combustion engines | |