Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373916 | Closure member for an elevator shaft | Ari Ketonen | 1994-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373916 | Closure member for an elevator shaft | Ari Ketonen | 1994-12-20 |