Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879188 | Bypass element for safeguarding battery cells | Henner Meinhold, Gunther Petri | 1989-11-07 |
| 4849806 | Shunting element | Hans Kahlen, Bernd Jahnke, Conrad Schmidt | 1989-07-18 |