Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4312420 | Sound diffusion plant with very low directivity | — | 1982-01-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4312420 | Sound diffusion plant with very low directivity | — | 1982-01-26 |