DH

David Arthur Headrick

📍 North York, CA: #28 of 84 inventorsTop 35%
Overall (2019): #496,936 of 560,194Top 90%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10508874 Automatic spent magazine ejection and control group Leonel Henriques Machado 2019-12-17