Assignee
Inventors
- Alan Pelczyk (1 patents)
- Robert F. Purssell (2 patents)
- Alfred J. Woollard (1 patents)
- Albert L. Fowler (4 patents)
- David M. Walker (2 patents)
- Alan G. Henderson (2 patents)
- Alastair K. Stevenson (3 patents)
US Patent 4353050 · Granted Oct 5, 1982