DH

Darryll Arthur Douglas Holland

📍 Elmira, CA: #27 of 56 inventorsTop 50%
Overall (All Time): #3,397,714 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7278442 Vented port-cap for fire hydrant Sean Kellie Montgomery 2007-10-09