Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4553761 | Seal | Erich Habel, Hans-Joachim Walther | 1985-11-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4553761 | Seal | Erich Habel, Hans-Joachim Walther | 1985-11-19 |