Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6161342 | Prefabricated concrete element for building a civil engineering structure having an arched wall | Alberto Antonio Melo Ferreira | 2000-12-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6161342 | Prefabricated concrete element for building a civil engineering structure having an arched wall | Alberto Antonio Melo Ferreira | 2000-12-19 |