| All Patents in class 251/118 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 127,768 | Jun. 11, 1872 | J.L. Hewes | Improvement in stop-valves for water-pipes | |
| 927,434 | Jul. 06, 1909 | W. Dieter, H.W. Shonnard | Air-heater for compressed-air engines | hot air engines |
| 1,032,482 | Jul. 16, 1912 | W.E. Jerauld | Safety Valve | steam safety valves |
| 2,051,509 | Aug. 18, 1936 | D.D. Wile | Valve | valves |
| 2,792,015 | May 14, 1957 | R.V. Smith | Liquid relief valve | pressure regulators |
| 2,903,234 | Sep. 08, 1959 | H. Steinhauer, V.v. Sundt | Timed Valve with Cam Actuator | metalworking machine mechanisms |
