Assignee
No assignee recorded.
Inventors
- Neil J. Griffith (9 patents)
- Dan Vance (13 patents)
- Robert Schneider (14 patents)
- Brian S. Kelleher (40 patents)
- Unknown
- Theodore B. Hill (31 patents)
- Unknown
US Patent 4757804 · Granted Jul 19, 1988
No assignee recorded.