BD

Bert H. Dann

BH Bell And Howell: 1 patents #131 of 293Top 45%
Eastman Kodak: 1 patents #4,972 of 8,114Top 65%
📍 South Pasadena, CA: #155 of 313 inventorsTop 50%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,360,565 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4489354 Information recording system with recording process monitoring function — 1984-12-18
4280100 Time modulation pulse averaging demodulator — 1981-07-21