BC

Bernard Constans

EF Elf France: 1 patents #61 of 154Top 40%
📍 La Mulatière, FR: #13 of 24 inventorsTop 55%
Overall (All Time): #4,022,031 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4543195 Friction-reducing lubricating compositions each comprising an additive Henri Grangette, Paul Maldonado 1985-09-24