Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4549497 | Device for underwater sealing ports or similar, notably the bottom traps from hopper barges | — | 1985-10-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4549497 | Device for underwater sealing ports or similar, notably the bottom traps from hopper barges | — | 1985-10-29 |