HD

Harvey L. Downing

📍 Garland, TX: #14 of 79 inventorsTop 20%
🗺 Texas: #885 of 4,134 inventorsTop 25%
Overall (1989): #108,853 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4862394 Drop height recorder David B. Thompson, Stanley V. Preskitt, Michael V. Allred 1989-08-29