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Scraper-chain conveyor channel section
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Patent number 4,735,304
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Issue date Apr 5, 1988
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Gewerkschaft Eisenhutte Westfalia GmbH
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Gunther-Dietmar Schoop
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Channel sections of scraper-chain conveyors
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Patent number 4,667,811
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Issue date May 26, 1987
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Gewerkschaft Eisenhutte Westfalia
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Gunther-Dietmar Schoop
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Scraper-chain conveyor channel section
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Patent number 4,658,952
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Issue date Apr 21, 1987
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Gewerkschaft Eisenhutte Westfalia
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Dieter Grundken
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Scraper-chain conveyor channel section
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Patent number 4,632,239
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Issue date Dec 30, 1986
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Gewerkschaft Eisenhutte Westfalia
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Gunther-Dietmar Schoop
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Cutter-bit assemblies
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Patent number 4,626,034
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Issue date Dec 2, 1986
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Gewerkschaft Eisenhutte Westfalia
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Oswald Breuer
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E21 - EARTH DRILLING MINING
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