JJ

John K. Jamth

📍 Randaberg, NO: #31 of 53 inventorsTop 60%
Overall (All Time): #3,756,480 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5571951 Apparatus and a method for the testing of concrete for use when cementing casings in oil and gas wells 1996-11-05