Assignee
Inventors
- Floyd S. Cowan (2 patents)
- David Grider (5 patents)
- Ricky L. Hughes (1 patents)
- Neil A. Thaggard (1 patents)
- John R. Wagner (12 patents)
- Leroy G. Webb (1 patents)
- James Geoffrey Williams (11 patents)
US Patent 5167243 · Granted Dec 1, 1992