Assignee
Inventors
- Robert C. MacDonald (23 patents)
- Gerald M. Rees (3 patents)
- Elsa Abrego (5 patents)
- Matthew Martin (16 patents)
- Jon Jay Howard (1 patents)
- Marjorie J. Polis (7 patents)
- Jeffrey W. Blain (7 patents)
US Patent 4784240 · Granted Nov 15, 1988