DC

David D. Castillo

📍 Phoenix, AZ: #38 of 235 inventorsTop 20%
🗺 Arizona: #166 of 945 inventorsTop 20%
Overall (1989): #123,727 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4867444 Grip apparatus for weightlifting bar — 1989-09-19