Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850172 | Ceiling or like structural system and splice member therefor | Thomas O. Johnstone, Frank Malachowski | 1989-07-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850172 | Ceiling or like structural system and splice member therefor | Thomas O. Johnstone, Frank Malachowski | 1989-07-25 |