Assignee
No assignee recorded.
Inventors
- Thomas C. Christensen (12 patents)
- Unknown
- Douglas Edward DeVries (22 patents)
- Unknown
- Unknown
- Unknown
- Timothy J. Prachar (19 patents)
- Daniel W. Smith (8 patents)
- Michael W. Walter (4 patents)
US Patent 5612710 · Granted Mar 18, 1997
No assignee recorded.