JG

John Gregorio

📍 Covina, CA: #2 of 11 inventorsTop 20%
🗺 California: #2,144 of 10,592 inventorsTop 25%
Overall (1989): #95,239 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4797056 Safety brake for cement truck chute Charles Gerold 1989-01-10