ER

Ekkehard Richter

BG Bergwerksverband Gmbh: 1 patents #2 of 11Top 20%
Overall (1989): #117,282 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4855116 Activated coke method of removing nitrogen oxides from exhaust gases Harald Juntgen, Hans-Jurgen Schmidt, Karl Knoblauch 1989-08-08