AK

Al Kratzer

3M: 1 patents #7,233 of 11,543Top 65%
Overall (All Time): #3,838,226 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5264080 Archival aperture card Jeffry S. Shaw, James Michael Harris 1993-11-23