Assignee
Inventors
- Hubert van den Bergh (15 patents)
- Peter F. Cornaz, deceased (2 patents)
- Max M. Cornaz, heir (2 patents)
- Jean-Pierre Cornaz, heir (2 patents)
- Maria I. Cornaz, heir (2 patents)
- Georges Wagnieres (12 patents)
US Patent 5117474 · Granted May 26, 1992