OB

O. J. Birkestrand

📍 El Monte, CA: #84 of 170 inventorsTop 50%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,838,708 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5265987 Center drilling machine for rod stock — 1993-11-30