JG

Johan G. Grabe

BL Boart International, Limited: 2 patents #1 of 19Top 6%
📍 Carletonville, ZA: #2 of 6 inventorsTop 35%
Overall (All Time): #2,371,425 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4305462 Apparatus for positioning deflection wedges Wulf Eilers, Zdenek L. Figar, Stanley J. Landers, David Stanley Williams 1981-12-15
4284136 Positioning deflection wedges 1981-08-18