MR

Maria Ritz

Overall (2002): #158,541 of 266,432Top 60%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6489605 Device to aid the orientation of blind and partially sighted people Lutz Konig, Ludger Woste 2002-12-03