EC

Emmett E. Chapman

📍 Calabasas, CA: #2,243 of 4,119 inventorsTop 55%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,208,127 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8183447 Dual-tensioned neck truss system for stringed musical instruments 2012-05-22