AH

Alvin D. Heindel

📍 College Park, MD: #192 of 353 inventorsTop 55%
🗺 Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #3,829,498 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5231542 Method and device for improving bass response in magnetic tape recording — 1993-07-27