Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868278 | Aromatic copolyesters | William A. MacDonald | 1989-09-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868278 | Aromatic copolyesters | William A. MacDonald | 1989-09-19 |