| All Patents in class 417/175 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 57,057 | Aug. 07, 1866 | J. Gresham | Improvement in injectors for boilers | feedwater apparatus |
| 88,620 | Apr. 06, 1869 | A. Friedman | Steam Pump | steam pumps |
| 165,843 | Jul. 20, 1875 | G.H. Little | Injector | water injectors |
| RE8,104 | Feb. 26, 1878 | G.H. Little | Injector | |
| 224,798 | Feb. 24, 1880 | J.S. Bancroft, W. Sellers | Injector for Feeding Boilers | water injectors |
| 234,157 | Nov. 09, 1880 | E. Wohlers | Injector | water injectors |
| 234,158 | Nov. 09, 1880 | E. Wohlers | Injector | feedwater apparatus |
| 248,301 | Oct. 18, 1881 | W. Fuller | Boiler Injector | water injectors |
| 276,319 | Apr. 24, 1883 | E. Wohlers | Injector | water injectors |
| 298,329 | May 06, 1884 | J. Wotapek | Injector and Ejector | water injectors |
| 301,735 | Jul. 08, 1884 | W.B. Mack | Injector | water injectors |
| 303,986 | Aug. 26, 1884 | H.F. Colvin | Injector | water injectors |
| 368,798 | Aug. 23, 1887 | E. Ware | Injector | water injectors |
| 390,730 | Oct. 09, 1888 | E. Ware | Injector | water injectors |
| 448,488 | Mar. 17, 1891 | W.R. Park | Injector | water injectors |
