Assignee
Inventors
- Johannes Wilhelmus Franciscus Maria Van Nispen (1 patents)
- Henricus Carl Joseph Ottenheym (2 patents)
- Jacobus Albertus Maria Peters (4 patents)
- Arie Visser (5 patents)
- Wilhelmientje Jetten (1 patents)
US Patent 5719128 · Granted Feb 17, 1998