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Matthias Brenke

RK Rotring-Werke Riepe Kg: 1 patents #3 of 13Top 25%
Overall (All Time): #3,904,402 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4931093 Marker or felt tip pen Detlef Koch 1990-06-05