Assignee
Inventors
- Colin Atkinson (2 patents)
- Michael J. H. Heybourne (2 patents)
- William J. Iley (4 patents)
- Peter C. Knight (12 patents)
- Peter J. Russell (7 patents)
- Thomas H. Taylor (76 patents)
- David Philip Jones (2 patents)
US Patent 4900466 · Granted Feb 13, 1990