Assignee
No assignee recorded.
Inventors
- Unknown
- Richard F. Cantwell (3 patents)
- Robert E. Dutton (23 patents)
- William A. Gibson (14 patents)
- Unknown
- Matthew L. McConnell (5 patents)
- David W. Roecker (26 patents)
- Unknown
US Patent 4783137 · Granted Nov 8, 1988
No assignee recorded.