Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4643235 | Method for making oxygen electrode for alkaline galvanic cells | Detlef Katryniok, Jean Ruch | 1987-02-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4643235 | Method for making oxygen electrode for alkaline galvanic cells | Detlef Katryniok, Jean Ruch | 1987-02-17 |