Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829728 | Soundproof structure for generic interior facing, and particularly for so-called open-space working, interiors | — | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829728 | Soundproof structure for generic interior facing, and particularly for so-called open-space working, interiors | — | 1989-05-16 |