Ludger Wöste

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D-14109 Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Device to aid the orientation of blind and partially sighted people
- Patent number 6,489,605
- Issue date Dec 3, 2002
- Vistac GmbH
- Maria Ritz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Orientation aid for the blind and the visually disabled
- Patent number 6,298,010
- Issue date Oct 2, 2001
- Maria Ritz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE