| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 431/32 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 2,356,928 | Aug. 29, 1944 | A.G. Hann | Control Device | flow controls | |
| 2,449,237 | Sep. 14, 1948 | W.S. Landon | Fuel Feeding Apparatus | flow controls | |
| 2,493,297 | Jan. 03, 1950 | W.S. Landon | Orifice Cleaning Means | pipe and orifice cleaners | |