Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824710 | Heat-insulation wall and its application to the building of a heat-insulation device | — | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824710 | Heat-insulation wall and its application to the building of a heat-insulation device | — | 1989-04-25 |