All Patents of Type: pump valves |
Patents 1 -
11
of 11
|
Number | Date | Patentee | Title | Type |
19,398 | Feb. 16, 1858 | G.M. Woodward, C. Woodward | Pump Valve | pump valves |
89,344 | Apr. 27, 1869 | A.K. Rider | Pump Valve | pump valves |
206,558 | Jul. 30, 1878 | W.H. Guild, Jr. | Valve Action of Duplex Engines and Pumps | steam engine valves |
215,800 | May 27, 1879 | G.H. Corliss | Pump-Valve | pump valves |
229,881 | Jul. 13, 1880 | H.F. Gaskill | Pump Valve | pump valves |
RE9,388 | Sep. 28, 1880 | A.K. Rider | Pump Valve | pump valves |
RE9,857 | Sep. 06, 1881 | W.H. Guild, Jr. | Valve Action of Duplex Engines and Pumps | steam engine valves |
276,805 | May 01, 1883 | W.H. Guild | Pump Valve | pump valves |
292,396 | Jan. 22, 1884 | C. Ahrens | Pump-valve | pump valves |
491,543 | Feb. 14, 1893 | H.F. Frisbie | Valve for Pumps | pump valves |
2,157,480 | May 09, 1939 | L.A. Cole | Magnetic valve | pump valves |