Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6592296 | Sealing assembly for tunnel construction sections | Heiko Hoft, Dieter Kassel | 2003-07-15 |
| 6575664 | Sealing arrangement | Dieter Kassel, Werner Degel | 2003-06-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6592296 | Sealing assembly for tunnel construction sections | Heiko Hoft, Dieter Kassel | 2003-07-15 |
| 6575664 | Sealing arrangement | Dieter Kassel, Werner Degel | 2003-06-10 |