HD

Harry D. Dickinson

📍 La Cañada Flintridge, CA: #2 of 10 inventorsTop 20%
🗺 California: #320 of 6,198 inventorsTop 6%
Overall (1982): #13,516 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4354771 Motorized curb barrier traffic-way controller 1982-10-19
4318079 Motorized tire barrier and signal barrier traffic-way controller 1982-03-02