| All Patents in class 236/92R |
Patents 1 -
10
of 13
      |
| Picture | Number | Date | Patentee | Title |
 | 85,792 | Jan. 12, 1869 | G.H. Clemens | Improvement in steam safety-valves |
| | 1,950,501 | Mar. 13, 1934 | J.J. MacKay | Rock crushing plant |
| | 2,129,499 | Sep. 06, 1938 | W.S. Landon | Control Device |
| | 2,183,650 | Dec. 19, 1939 | G.L. Gundersen, E. Klafstad | Relief Valve |
| | 2,209,216 | Jul. 23, 1940 | D.D. Wile | Control Device |
| | 2,215,947 | Sep. 24, 1940 | D.D. Wile | Refrigerating Apparatus |
| | 2,242,334 | May 20, 1941 | D.D. Wile | Refrigerating System |
 | 2,287,433 | Jun. 23, 1942 | E. Klafstad | System for Safeguarding the Operation of Steam Boilers |
| | 2,306,768 | Dec. 29, 1942 | D.D. Wile | Control Device |
| | 2,357,795 | Sep. 12, 1944 | W.E. Cowley, E.J. Dillman | Valve |
