Assignee
No assignee recorded.
Inventors
- Robert A. Casper (20 patents)
- Frank A. Leith (11 patents)
- David L. Gardner (28 patents)
- John M. Snow (7 patents)
- Zachary Wood Lyon (25 patents)
- David Scott Farrar (7 patents)
US Patent 6209538 · Granted Apr 3, 2001
No assignee recorded.