Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479992 | Sound absorbing structural element | Robert Vignal, Guy Ferrand | 1984-10-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479992 | Sound absorbing structural element | Robert Vignal, Guy Ferrand | 1984-10-30 |