Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643677 | Aminoplast/polyurethane wear layer for PVC support surface | Joseph P. Feifer, Mary B. Grubb, William T. Sigman | 1997-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643677 | Aminoplast/polyurethane wear layer for PVC support surface | Joseph P. Feifer, Mary B. Grubb, William T. Sigman | 1997-07-01 |