Assignee
Inventors
- John A. Krug (24 patents)
- William L. Willis (3 patents)
- Paul J. Dumser (5 patents)
- William U. Casseau (5 patents)
- William T. Deet (2 patents)
- Laurence E. Culligan (3 patents)
- Bruce Walter (1 patents)
US Patent 5159882 · Granted Nov 3, 1992