Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437500 | Tunneling machine with center cutter and debris removing means | Rolf Heerssen, Martin Herrenknecht | 1995-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437500 | Tunneling machine with center cutter and debris removing means | Rolf Heerssen, Martin Herrenknecht | 1995-08-01 |