Assignee
Inventors
- Jan Bussink (21 patents)
- Henricus Gerardus C. Denissen (2 patents)
- Erwin Marie Alfred Gijzen (6 patents)
- Hendrik Theodorus van de Grampel (13 patents)
- Theodorus Lambertus Hoeks (46 patents)
- Henricus H. M. van Hout (12 patents)
US Patent 5576413 · Granted Nov 19, 1996