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 | Peter Doerfler, Volker Kleine, Johannes Meyknecht | 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 | Peter Doerfler, Volker Kleine, Johannes Meyknecht | 1989-04-25 |