Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441744 | Branch pipe part | Albertus A. Oostenbrink, Marinus L. G. van Kaam | 1984-04-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441744 | Branch pipe part | Albertus A. Oostenbrink, Marinus L. G. van Kaam | 1984-04-10 |