LK

Leo Kitschen

MA Metallgesellschaft Ag: 1 patents #308 of 715Top 45%
Overall (All Time): #3,776,967 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5439115 Process for selective flotation of copper-lead-zinc sulfide Ali-Naghi Beyzavi, Friedrich Rosenstock, Horst Dittmann 1995-08-08