Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4680069 | Method for the fabrication of a double-walled construction element | — | 1987-07-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4680069 | Method for the fabrication of a double-walled construction element | — | 1987-07-14 |