Assignee
Inventors
- James M. Forsyth (7 patents)
- Joseph A. Abate (4 patents)
- Thomas L. Duft (2 patents)
- Malcolm M. Drummond (1 patents)
- Lisa Gregorka (1 patents)
- John Hoose (11 patents)
- Robert G. Zambelli (12 patents)
US Patent 4980896 · Granted Dec 25, 1990