Assignee
Inventors
- Jozef F. E. Van Gestel (9 patents)
- William R. Lutz (46 patents)
- Guy Rosalia Eugeen Van Lommen (36 patents)
- Hanspeter Fischer (16 patents)
- Marc Francis Josephine Schroven (8 patents)
- Rudolph C. Thummel (13 patents)
US Patent 4770689 · Granted Sep 13, 1988