| All Patents in class 251/11 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 85,792 | Jan. 12, 1869 | G.H. Clemens | Improvement in steam safety-valves | steam safety valves |
| 207,421 | Aug. 27, 1878 | R.K. Huntoon | Improvement in gas-exhaust regulators | steam engine governors |
| 456,346 | Jul. 21, 1891 | H.E. Stager | Steam-radiator attachment | steam heating |
| 2,085,300 | Jun. 29, 1937 | E.J. Dillman | Control Device | flow controls |
| 2,214,272 | Sep. 10, 1940 | E.J. Dillman | Fuel Supply Control Means | flow controls |
| 2,266,975 | Dec. 23, 1941 | W.S. Landon | Control Device | flow controls |
| 2,275,624 | Mar. 10, 1942 | A.G. Hann | Control Device | flow controls |
| 2,276,227 | Mar. 10, 1942 | E.J. Dillman | Control Device | temperature controls |
| 2,297,872 | Oct. 06, 1942 | E.J. Dillman, W.E. Cowley, F.Y. Carter | Control Apparatus | refrigeration apparatus |
| 2,335,212 | Nov. 23, 1943 | W.S. Landon | Heating Apparatus | heating apparatus |
| 2,335,824 | Nov. 30, 1943 | E.J. Dillman | Valve | valves |
| 2,372,436 | Mar. 27, 1945 | W.S. Landon | Controlling Means | flow controls |
| 2,409,112 | Oct. 08, 1946 | E.J. Dillman | Automatic Valve | flow controls |
| 2,433,493 | Dec. 30, 1947 | J.L. Turner | Electrically Heated Bellows Motor | valves |
| 2,466,583 | Apr. 05, 1949 | E.J. Dillman | Trip Mechanism | flow controls |
