DH

Dean J. Hirschfield

📍 Pittsburgh, PA: #55 of 224 inventorsTop 25%
🗺 Pennsylvania: #570 of 2,652 inventorsTop 25%
Overall (1982): #69,583 of 81,411Top 90%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4320831 Plastic containers for small valuable articles Bela G. Szabo 1982-03-23