RW

Ralph Francis Walker

📍 Brentford, GB: #22 of 50 inventorsTop 45%
Overall (All Time): #3,290,253 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7725972 Toothbrush Tamas Berde, Christoph Geiberger 2010-06-01