Assignee
Inventors
- David Edward Chicken (1 patents)
- Douglas Bainbridge (3 patents)
- John Hewetson Brown Burgess (1 patents)
- Andrew Downie (25 patents)
- Raymond George Evans (5 patents)
- David Smith (6 patents)
- Kenneth Williamson (6 patents)
US Patent 6131951 · Granted Oct 17, 2000