Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878329 | Structural panels for walls, floors and roofs having exterior metal layers and an insulating concrete core | — | 1989-11-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878329 | Structural panels for walls, floors and roofs having exterior metal layers and an insulating concrete core | — | 1989-11-07 |