Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883825 | Process for the manufacture of low density, flexible polyurethane foams | Paul M. Westfall, Frank E. Critchfield | 1989-11-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883825 | Process for the manufacture of low density, flexible polyurethane foams | Paul M. Westfall, Frank E. Critchfield | 1989-11-28 |