Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6181527 | Transducer suspension system including a frequency dependent shunt | John Contreras, Darrell D. Palmer | 2001-01-30 |
| 4412317 | Transducer for picking up mechanical vibrations, in particular seismic waves, and a seismic measuring system including such a transducer | Ronald Jan Asjes, Jacobus C. L. van Peppen | 1983-10-25 |