DB

David J. Barnett

📍 Hemel Hempstead, GB: #1 of 6 inventorsTop 20%
Overall (1989): #29,728 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D302643 Device for removing caps or tops from sealed containers Alan Knight 1989-08-08
D302233 Corkscrew 1989-07-18