David A. Swinburne

📍 Bethesda, MD: #915 of 2,269 inventorsTop 45%

🗺 Maryland: #13,387 of 35,612 inventorsTop 40%

Overall (All Time): #2,324,421 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D309142	Support stand for a desk telephone	—	1990-07-10
D308522	Support stand for a desk phone	—	1990-06-12