Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4303499 | Process for the production of a transformer oil | Walter Geistert, Ulrich Kramer | 1981-12-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4303499 | Process for the production of a transformer oil | Walter Geistert, Ulrich Kramer | 1981-12-01 |