| All Patents in class 417/191 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 677,866 | Jul. 09, 1901 | W.T. Harris | Apparatus for Returning Exhaust Steam to Steam Boilers | steam pumps |
| 1,109,682 | Sep. 08, 1914 | L. Kassander | Jet Pump Apparatus | steam pumps |
| 1,596,523 | Aug. 17, 1926 | L. Friedmann | Exhaust Steam Injector | water injectors |
| 2,625,797 | Jan. 20, 1953 | J.H. Shaver, H.H. Poort | Hydraulic eductor valve | hydraulic apparatus |
| 4,120,616 | Oct. 17, 1978 | N.M. Dwyer, J.A. Rasins | Vacuum cleaner-blower assembly with sound absorbing arrangement | blowers |
