Assignee
No assignee recorded.
Inventors
- Albert Johannes Joseph Van Ooijen (13 patents)
- Unknown
- Andreas Hoekema (15 patents)
- Jan Pen (11 patents)
- Peter Christian Sijmons (5 patents)
- Teunis Cornelis Verwoerd (8 patents)
US Patent 6022846 · Granted Feb 8, 2000
No assignee recorded.