CB

Charles A. Barr

PO Polaroid: 1 patents #513 of 898Top 60%
Overall (All Time): #4,007,981 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4491434 Handheld viewer for transparency film David E. Van Allen, John K. Zanardelli 1985-01-01