Assignee
Inventors
- Neal T. Christensen (5 patents)
- Steven T. Comfort (9 patents)
- Robert J. Hurban (3 patents)
- Bruce L. McGilvray (6 patents)
- Arthur J. Sutton (7 patents)
- James R. Urquhart (5 patents)
- David R. Willoughby (24 patents)
US Patent 4916703 · Granted Apr 10, 1990