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Heinrich Wildforster
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Gelsenkirchen-Buer, DE
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last 30 patents
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Patent Grant
Mineral mining planer having pivoted floor cutter carrier
Patent number
4,189,187
Issue date
Feb 19, 1980
Gewerkschaft Eisenhutte Westfalia
Christoph Rassmann
E21 - EARTH DRILLING MINING
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Patent Grant
Control system for a mineral mining installation
Patent number
4,099,782
Issue date
Jul 11, 1978
Gewerkschaft Eisenhutte Westfalia
Walter Weirich
E21 - EARTH DRILLING MINING