HH

Herbert T. Hardt

📍 Appleton, WI: #966 of 1,506 inventorsTop 65%
🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #3,984,705 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4703829 Collapsible and portable megaphone — 1987-11-03