Assignee
No assignee recorded.
Inventors
- Jacobus Lemmens (21 patents)
- Theodorus Peters (23 patents)
- Frantisek Picha (18 patents)
- Johannes Jan Platteeuw (20 patents)
- Frans van Dalen (11 patents)
US Patent 6645523 · Granted Nov 11, 2003
No assignee recorded.