Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324139 | Method for the construction of long tunnel with a lining | Harald Wagner, Alfred Schulter, Otto Schubert | 1994-06-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324139 | Method for the construction of long tunnel with a lining | Harald Wagner, Alfred Schulter, Otto Schubert | 1994-06-28 |