Assignee
Inventors
- Kim A. Klopfleisch (4 patents)
- Tim A. Wellman (5 patents)
- Willard D. Kaiser (3 patents)
- Mark J. Koenig (4 patents)
- Richard W. Ridgway (27 patents)
- Bobby Lee Walters (3 patents)
- Matthew S. Zelinski (2 patents)
US Patent 5068791 · Granted Nov 26, 1991