Assignee
Inventors
- Robert V. Hess (2 patents)
- Billy T. Upchurch (12 patents)
- Kenneth G. Brown (15 patents)
- Irvin M. Miller (6 patents)
- David R. Schryer (11 patents)
- Barry D. Sidney (2 patents)
- George M. Wood (6 patents)
- Ronald F. Hoyt (1 patents)
US Patent 4839330 · Granted Jun 13, 1989