Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818150 | Wall with gravity support structure, building element and method for construction thereof | — | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818150 | Wall with gravity support structure, building element and method for construction thereof | — | 1989-04-04 |