DH

Donald H. Heyden

📍 Inverness, IL: #2 of 3 inventorsTop 70%
🗺 Illinois: #566 of 2,749 inventorsTop 25%
Overall (1982): #79,233 of 81,411Top 100%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4324138 Method of and apparatus and system for determining temperature conditions Bayard C. Davis 1982-04-13