Assignee
Inventors
- Louis S. Hoffman (18 patents)
- William Bohmer (30 patents)
- Ralph DeVito (23 patents)
- Brian R. Langille (4 patents)
- Richard D. Watkins (22 patents)
- Charles B. Sanders (5 patents)
- Martha E. Kerch (4 patents)
- Marc Shanko (4 patents)
US Patent 4786005 · Granted Nov 22, 1988