Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4194744 | Phonograph pick-up transducer using a one-piece bearing and inertial damper fabricated from different materials | Allen R. Groh, Lawrence R. Happ | 1980-03-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4194744 | Phonograph pick-up transducer using a one-piece bearing and inertial damper fabricated from different materials | Allen R. Groh, Lawrence R. Happ | 1980-03-25 |