Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4272990 | Device for the measurement of acoustic reverberation time and method | Klaus Hiemann | 1981-06-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4272990 | Device for the measurement of acoustic reverberation time and method | Klaus Hiemann | 1981-06-16 |