| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 261/29 | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 1,782,928 | Nov. 25, 1930 | J.S. Knowlson | Humidifier | |
| 3,512,761 | May 19, 1970 | J.F. O'Regan, B.A. Lundberg, W.J. Mussoni | Hydraulically-powered foam fire suppression system | ||