Assignee
No assignee recorded.
Inventors
- Unknown
- Unknown
- David Smith (44 patents)
- Dan L. Cooper (2 patents)
- Gary Workman (22 patents)
- David Purves (2 patents)
- Unknown
- Unknown
- Darell E. Engelhaupt (19 patents)
US Patent 5870185 · Granted Feb 9, 1999
No assignee recorded.