JD

Jean Delbarre

EF Electricite De France: 1 patents #99 of 546Top 20%
📍 Beuvry, FR: #5 of 9 inventorsTop 60%
Overall (All Time): #4,021,922 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4542796 Process and device for drilling the soil — 1985-09-24