DS

Douglas Steinfeld

📍 Marlborough, MA: #26 of 74 inventorsTop 40%
🗺 Massachusetts: #1,861 of 6,881 inventorsTop 30%
Overall (2003): #233,820 of 273,478Top 90%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D483390 Audio-visual presentation device Richard C. LaPierre 2003-12-09