HE

Helmut Erwien

GG Gewerkschaft Eisenhutte Westfalia Gmbh: 2 patents #52 of 163Top 35%
📍 Grafenau, DE: #65 of 201 inventorsTop 35%
Overall (All Time): #2,357,853 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4445878 Chain stripper devices and assemblies for mining machines Horst Linke, Josef Albers 1984-05-01
4389072 Longwall mineral mining installation Horst Linke, Herbert Beyer, Bodo Kerklies, Bernhard Wleklinski, Rudolf Mainusch +3 more 1983-06-21