FI

Frank R. Irwin

AU Augerscope: 1 patents #1 of 2Top 50%
📍 Oceano, CA: #1 of 1 inventorsTop 100%
🗺 California: #2,144 of 10,592 inventorsTop 25%
Overall (1989): #114,689 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4870992 Backflow prevention device Lawrence F. Irwin 1989-10-03