Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825198 | Method of and apparatus for testing the tightnesses of two valves arranged in a fluid line | Jurgen Rolker, Peter Doerfler, Volker Kleine | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825198 | Method of and apparatus for testing the tightnesses of two valves arranged in a fluid line | Jurgen Rolker, Peter Doerfler, Volker Kleine | 1989-04-25 |