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| All Patents in class 290/36A | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,776,683 | Sep. 23, 1930 | E.T. Larkin | Automatic Controlling System for Internal Combustion Engines | engine control apparatus | |
| 2,083,411 | Jun. 08, 1937 | F.R. Swanson | Controller | ||