HS

Hans-Peter Spannehl

CO Contraves: 1 patents #23 of 78Top 30%
Overall (All Time): #4,011,664 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4504843 Surface structure for the drum of a recording device Hans-Rudiger Prohl, Bernd Schmidt 1985-03-12