FK

Friedhelm Kiewning

FA Franz Buttner Ag: 1 patents #2 of 11Top 20%
Overall (All Time): #3,889,143 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5062725 Typewriter or printer ribbon and method for its manufacture Ian Hogarth 1991-11-05