Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439617 | Coupler for a pipe or hose section | Hans Boer, Johannes Spykman | 2002-08-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439617 | Coupler for a pipe or hose section | Hans Boer, Johannes Spykman | 2002-08-27 |