Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5040922 | Method for repairing an inaccessible sewage pipe leading away from a house using a remote-controlled apparatus operating in the main sewage pipe | — | 1991-08-20 |
| 4986314 | Apparatus for carrying out repair works on a damaged pipeline which a person cannot get through | — | 1991-01-22 |
| 4782786 | Device to fill and glue all kinds of depressions in inaccessible pipe conduits | — | 1988-11-08 |