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Pivoting transfer means at belt conveyor
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Patent number 5,632,370
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Issue date May 27, 1997
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MAN Gutehoffnungshutte Aktiengesellschaft
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Hartmut Grathoff
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Cover belt conveyor
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Patent number 5,305,868
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Issue date Apr 26, 1994
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MAN Gutehoffnungshutte
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Hartmut Grathoff
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Method of strip mining
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Patent number 5,165,757
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Issue date Nov 24, 1992
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MAN Gutehoffnungshutte Aktiengesellschaft
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Hartmut Grathoff
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E21 - EARTH DRILLING MINING
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Traveling conveyor arrangement
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Patent number 5,013,201
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Issue date May 7, 1991
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MAN Gutehoffnungshutte
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Hartmut Grathoff
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Continuous bulk material conveyer
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Patent number 4,907,932
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Issue date Mar 13, 1990
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Man Gutehoffnungshutte GmbH
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Hartmut Grathoff
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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