Edwin E. Hedeen

📍 Orland Park, IL: #5 of 24 inventorsTop 25%

🗺 Illinois: #1,118 of 4,656 inventorsTop 25%

Overall (1997): #156,524 of 185,788Top 85%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5640459	Portable voice amplifier	—	1997-06-17