Assignee
No assignee recorded.
Inventors
- Robert Willem Goldbach (3 patents)
- Dirk Peters (3 patents)
- Johannes Jacobus Ludgerus Gielen (10 patents)
- Petrus Theodorus De Haan (10 patents)
- Arnoldus Johannes Kool (3 patents)
- Unknown
US Patent 5939600 · Granted Aug 17, 1999
No assignee recorded.