| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 137/115.14 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 2,071,143 | Feb. 16, 1937 | L.l. Scott | Automatic Valve | flow controls | |
| 2,100,997 | Nov. 30, 1937 | P.S. Russel | Pressure Control Device | pressure regulators | |
| 2,460,048 | Jan. 25, 1949 | A. Von Wangenheim | Pressure Regulating Means | pressure regulators | |