Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889909 | Thermoplastic polyarylene ethers | Sigmund Besecke, Joachim Knebel, Guenter Schroeder | 1989-12-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889909 | Thermoplastic polyarylene ethers | Sigmund Besecke, Joachim Knebel, Guenter Schroeder | 1989-12-26 |