Assignee
Inventors
- Herman A. Deboer (6 patents)
- Rein Strijker (7 patents)
- Herbert L. Heyneker (34 patents)
- Gerard Johannes Platenburg (21 patents)
- Sang He Lee (9 patents)
- Frank Pieper (16 patents)
- Paul J. A. Krimpenfort (7 patents)
US Patent 6140552 · Granted Oct 31, 2000