Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4967879 | Ladder | Ulrich Klafs, Carlheinz Mannhardt, Oswald Riedl | 1990-11-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4967879 | Ladder | Ulrich Klafs, Carlheinz Mannhardt, Oswald Riedl | 1990-11-06 |