Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6219989 | Construction method of joining column and beam in building structure based on heavy-weight steel frame construction | — | 2001-04-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6219989 | Construction method of joining column and beam in building structure based on heavy-weight steel frame construction | — | 2001-04-24 |