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| All Patents in class 236/1R | |||||
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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 | |
| 2,389,111 | Nov. 13, 1945 | E.J. Dillman | Control Means | flow controls | |
| 2,505,975 | May 02, 1950 | M.E. Landon, Administratrix, W.S. Landon, deceased (Estate of) | Reciprocating Travel Controlling Means | valves | |
| 2,558,938 | Jul. 03, 1951 | T.E. Noakes, E.J. Dillman | Heat Pump and Control Means | heating apparatus | |