BA

Brian J. Armstrong

SI Smith International: 1 patents #6 of 18Top 35%
📍 Henry's Drive, CA: #3 of 11 inventorsTop 30%
🗺 California: #2,144 of 10,592 inventorsTop 25%
Overall (1989): #128,780 of 140,708Top 95%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4836307 Hard facing for milled tooth rock bits Madapusi K. Keshavan, Lance D. Underwood, Naresh J. Kar, Thomas W. Oldham, Cary A. Roth 1989-06-06