Assignee
Inventors
- Betty A. Bowie (3 patents)
- Richard D. Hedde (4 patents)
- Thomas O. Lindsey (5 patents)
- David J. Newman (5 patents)
- Marcia C. Shearer (6 patents)
- Robert D. Sitrin (11 patents)
- Joseph R. Valenta (4 patents)
US Patent 4797280 · Granted Jan 10, 1989