Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850600 | Sealing device for pipe connectors discharging into a vessel, in particular a steam generator | Erich Kaetscher, Alexander Huemmeler | 1989-07-25 |
| 4848406 | Sealing device for a pipeline, in particular for a loop line of a steam generator hemisphere | Johannes Stoss | 1989-07-18 |