Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921540 | System of component s usable in the manufacture of an acoustic transducer | David E. Schafer | 2011-04-12 |
| 7925041 | Method of making a linkage assembly for a transducer and the like | David E. Schafer | 2011-04-12 |