Assignee
No assignee recorded.
Inventors
- Hendrikus Luitjes (5 patents)
- Jacco Van Haveren (7 patents)
- Augustinus Emmanuel Frissen (7 patents)
- Gerard Hubert Frans Schmets (3 patents)
- Unknown
- Unknown
- Unknown
US Patent 6355713 · Granted Mar 12, 2002
No assignee recorded.