CB

Charles M. Benjamin

📍 Davenport, IA: #132 of 349 inventorsTop 40%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,332,226 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4852682 Underwater voice communicator — 1989-08-01
4331503 Manufacture of solar collector panels — 1982-05-25