Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795769 | Electric insulation with a silicic acid additive made by a melt process | Norbert Muller | 1989-01-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795769 | Electric insulation with a silicic acid additive made by a melt process | Norbert Muller | 1989-01-03 |