DH

David L. Helterbrand

📍 Garland, TX: #14 of 79 inventorsTop 20%
🗺 Texas: #885 of 4,134 inventorsTop 25%
Overall (1989): #122,993 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4805817 Locking bar for use with a spare tire carrier 1989-02-21