| All Patents in class 417/175 |
Patents 1 -
10
of 21
      |
| Picture | Number | Date | Patentee | Title |
 | 57,057 | Aug. 07, 1866 | J. Gresham | Improvement in injectors for boilers |
| | 88,620 | Apr. 06, 1869 | A. Friedman | Steam Pump |
| | 165,843 | Jul. 20, 1875 | G.H. Little | Injector |
| | RE8,104 | Feb. 26, 1878 | G.H. Little | Injector |
| | 224,798 | Feb. 24, 1880 | J.S. Bancroft, W. Sellers | Injector for Feeding Boilers |
| | 234,157 | Nov. 09, 1880 | E. Wohlers | Injector |
 | 234,158 | Nov. 09, 1880 | E. Wohlers | Injector |
| | 248,301 | Oct. 18, 1881 | W. Fuller | Boiler Injector |
| | 276,319 | Apr. 24, 1883 | E. Wohlers | Injector |
 | 298,329 | May 06, 1884 | J. Wotapek | Injector and Ejector |
