Assignee
Inventors
- Marc A. Asher (18 patents)
- Robert Gaines (9 patents)
- Walter E. Stripgen (2 patents)
- Frank S. Janson (5 patents)
- William L. Carson (13 patents)
- Terrence M. Stahurski (8 patents)
- Charles F. Heinig (20 patents)
US Patent 5257993 · Granted Nov 2, 1993