DH

Dean J. Hirschfield

📍 Pittsburgh, PA: #3,179 of 7,570 inventorsTop 45%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,361,840 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4378876 Display coin holder assemblies Bela G. Szabo 1983-04-05
4320831 Plastic containers for small valuable articles Bela G. Szabo 1982-03-23