Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824534 | Process for electrically separating the electrolyte-bearing mains from the electrolyte spaces of an electrochemical cell pile | Karl-Heinz Tetzlaff, Dieter Schmid | 1989-04-25 |