AD

Armand F. Dufresne

📍 Cambria, CA: #12 of 20 inventorsTop 60%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,126,466 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4241521 Multi-symbol message communicator for a speechless, handicapped person — 1980-12-30