Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4487219 | Floor drain or some other cupped water seal | Paavo M/a/ kel/a/, Heikki Masalin | 1984-12-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4487219 | Floor drain or some other cupped water seal | Paavo M/a/ kel/a/, Heikki Masalin | 1984-12-11 |