Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4308088 | Macrocrystalline aluminum oxide and method for its manufacture | Egon Cherdron, Heinz Hellinghausen, Alois Kramer, Horst Pohland | 1981-12-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4308088 | Macrocrystalline aluminum oxide and method for its manufacture | Egon Cherdron, Heinz Hellinghausen, Alois Kramer, Horst Pohland | 1981-12-29 |