Assignee
Inventors
- Ernst Hugentobler (2 patents)
- Hans Ruegg (24 patents)
- Karl Heinz Pflugl (2 patents)
- Norbert Kiethe (3 patents)
- Ruedi Frey (4 patents)
- Anton Mayer (9 patents)
- Theo Rey (4 patents)
- Alfred Edlinger (49 patents)
US Patent 5765489 · Granted Jun 16, 1998