WR

Wolfgang Ratzeburg

Overall (All Time): #4,125,822 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4239500 Process for the utilization of waste product tar-dust in gasification of granular fuel under pressure, especially of bituminous coal 1980-12-16