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Frederic Brongniart

📍 Liergues, FR: #4 of 4 inventorsTop 100%
Overall (All Time): #3,361,795 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7404458 Rotary percussive drilling device Franck Leon 2008-07-29