DB

Duane D. Beyer

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Lafayette, CA: #372 of 569 inventorsTop 70%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,961,309 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4779170 Phonograph record illumination device and system Mark E. Lockwood, Paul Kardel, Charles Lockwood 1988-10-18