Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619697 | Y-branch splittable connector | Willem Griffioen, Arie Van Wingerden, Cornelis Van 'T Hul, Pieter Lock, Willem Greven +1 more | 2003-09-16 |
| 6572081 | Installation of guide tubes in a protective duct | Willem Griffioen, Arie Van Wingerden, Cornelis Van T Hul, Pieter Lock, Willem Greven | 2003-06-03 |