| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 431/29 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 1,736,141 | Nov. 19, 1929 | G.D. Sundstrand | Safety control device | ||
| 2,231,209 | Feb. 11, 1941 | E.J. Dillman | Control Device | temperature controls | |