Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4207965 | Gliding cars and tracks type high building emergency escaping device | Yang Yin-Lung | 1980-06-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4207965 | Gliding cars and tracks type high building emergency escaping device | Yang Yin-Lung | 1980-06-17 |