BL

Bernard D. Lea

3M: 1 patents #7,233 of 11,543Top 65%
Overall (All Time): #4,109,644 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4197131 Dry silver photo-sensitive compositions Jack E. Reece 1980-04-08