Assignee
Inventors
- Gene D. Lester (1 patents)
- Richard A. Morgan (1 patents)
- Harold B. Harms (18 patents)
- John P. Barrett (17 patents)
- Tsung K. Chang (2 patents)
- Donald S. Cushing (11 patents)
- Richard F. Broo (2 patents)
- William M. Hood (2 patents)
US Patent 4876492 · Granted Oct 24, 1989