| All Patents in class 251/118 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 127,768 | Jun. 11, 1872 | J.L. Hewes | Improvement in stop-valves for water-pipes |
 | 391,916 | Oct. 30, 1888 | C.T. Porter | Steam-engine |
| | 927,434 | Jul. 06, 1909 | W. Dieter, H.W. Shonnard | Air-heater for compressed-air engines |
| | 1,032,482 | Jul. 16, 1912 | W.E. Jerauld | Safety Valve |
| | 2,051,509 | Aug. 18, 1936 | D.D. Wile | Valve |
| | 2,753,884 | Jul. 10, 1956 | G.W. Lindsay | Fuel filling adapter |
 | 2,792,015 | May 14, 1957 | R.V. Smith | Liquid relief valve |
| | 2,903,234 | Sep. 08, 1959 | H. Steinhauer, V.v. Sundt | Timed Valve with Cam Actuator |
