Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822311 | Free fall submersible life saving device for offshore structures | Jerzy Doerffer, Lech Adam Rowiński, Andrzej Niepieklo, Boguslaw Siwek | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822311 | Free fall submersible life saving device for offshore structures | Jerzy Doerffer, Lech Adam Rowiński, Andrzej Niepieklo, Boguslaw Siwek | 1989-04-18 |