BD

Bernard Ducourneau

SE Societe Nationale Des Poudres Et Explosifs: 1 patents #87 of 243Top 40%
📍 Marseille, FR: #93 of 213 inventorsTop 45%
Overall (All Time): #4,039,538 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4466352 Dual-mode propellant charge with a trumpet-shaped channel possessing a star-shaped cross-section Francis Dalet 1984-08-21