Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722001 | Self-propelled inspection vehicle | Heinz Rohrich, Clemens Dippold | 1988-01-26 |
| 4657450 | Machining tool for pipes | Siegfried Forner | 1987-04-14 |
| 4601133 | Manipulator head with grinding device for pipes or pipelines | Heinz Rohrich, Clemens Dippold, Siegfried Forner | 1986-07-22 |