MM

M. Duane Marrs

📍 Jackson, TN: #3 of 7 inventorsTop 45%
🗺 Tennessee: #148 of 740 inventorsTop 20%
Overall (1989): #32,106 of 140,708Top 25%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4823668 Resonator guitar simulator — 1989-04-25