RD

Roland D. Borgersen, deceased

KT King Tester: 2 patents #2 of 6Top 35%
📍 Via Enrico Fermi, PA: #138 of 375 inventorsTop 40%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,365,138 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4361034 Portable hardness tester James G. Mullen, James W. Lineberger 1982-11-30
4312220 Portable hardness tester James G. Mullen 1982-01-26