| All Patents in class 251/333 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 12,873 | May 15, 1855 | J.A. Reed | Steam-Engine Valve | steam pumps |
| 860,141 | Jul. 16, 1907 | J.P. Lavigne | Quick Opening Valve | industrial valves |
| 881,060 | Mar. 03, 1908 | J.J. Cook | Valve | valves |
| 1,555,025 | Sep. 29, 1925 | F.E. Raymond | Valve | industrial valves |
| 2,021,773 | Nov. 19, 1935 | P.H. Gentzel | Relief Valve | steam safety valves |
| 2,051,509 | Aug. 18, 1936 | D.D. Wile | Valve | valves |
| 2,446,274 | Aug. 03, 1948 | J.N. Gladden | Valve | internal combustion engine valves |
| 2,843,148 | Jul. 15, 1958 | A.W. Rymills | Soft closing nozzle valve | locomotive diesel fuel apparatus |
