| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 74/574.3 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 2,343,421 | Mar. 07, 1944 | F.P. Porter | Torsional Vibration Damper | vibration dampers | |
| 2,507,558 | May 16, 1950 | A.H. Dall, W. Schroeder | Dynamic Balancing Mechanism | metalworking machine mechanisms | |