| All Patents in class 137/400 |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
| | 2,067,836 | Jan. 12, 1937 | A.k. Foulds | Control Means |
| | 2,091,228 | Aug. 24, 1937 | A.G. Hann | Control Device |
| | 2,110,100 | Mar. 01, 1938 | A. Von Wangenheim | Gravity Feed Control |
| | 2,133,226 | Oct. 11, 1938 | A.G. Hann | Control Device |
| | 2,139,616 | Dec. 06, 1938 | A.K. Foulds | Control Device |
| | 2,197,262 | Apr. 16, 1940 | P.S. Russel | Control Device |
| | 2,228,037 | Jan. 07, 1941 | P.S. Russel | Fuel Controlling Apparatus |
| | 2,234,088 | Mar. 04, 1941 | P.S. Russel | Control Device |
| | 2,317,556 | Apr. 27, 1943 | P.S. Russel | Liquid Level Controlling Means |
| | 2,387,858 | Oct. 30, 1945 | P.S. Russel | Liquid Level Controlling Means |
