Assignee
Inventors
- John Bradshaw (40 patents)
- Duncan B. Judd (26 patents)
- Barry J. Price (24 patents)
- John W. Clitherow (38 patents)
- John MacKinnon (18 patents)
- Linda Carey (6 patents)
- Roger Hayes (15 patents)
US Patent 4777179 · Granted Oct 11, 1988