Assignee
No assignee recorded.
Inventors
- Unknown
- Jacob Bergsma (5 patents)
- Anko Cornelus Eissens (5 patents)
- Kornelis Fester Gottlieb (2 patents)
- Coenraad F. Lerk (8 patents)
- Unknown
- Gerrit Henk Peter Te Wierik (3 patents)
US Patent 6010717 · Granted Jan 4, 2000
No assignee recorded.