DEVICE FOR CONTROLLING PLANER von RYUDIGER KIRKHBRYUKHER,DE, KUNIBERT BEKER,DE

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DEVICE FOR LATERALLY SUPPORTING POWERED SUPPORT SECTIONS IN WORKING INCLINED AND STEEPLY INCLINED COAL SEAMS von GANS-IOAKHIM DREER,DE, KUNIBERT BEKER,DE

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WALKING ARRANGEMENT OF MOVABLE HYDRAULIC SUPPORT von VILLI KHEJER,DE, LUBOMIR PLEVAK,DE, KUNIBERT BEKER,DE, YURGEN DODT,DE

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STEPPING ARRANGEMENT FOR HYDRAULIC MOVABLE SUPPORT von VILLI KHEJER,DE, LUBOMIR PLEVAK,DE, KUNIBERT BEKER,DE, YURGEN DODT,DE

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CONTROL DEVICE FOR POWERED SUPPORT HYDRAULIC CYLINDERS von MIKHAEL DETTMERS,DE, KHARRI ROZENBERG,DE, KUNIBERT BEKER,DE, VALTER VAJRIKH,DE

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WINNING MACHINE FOR WORKING THICK STEEP SEAMS von KLAUS BEKMANN,DE, KUNIBERT BEKER,DE, GEJNRIKH BER,DE, GANS-YURGEN PENTSEK,DE, GERIBERT LOVEG,DE, GELMUT TRUSTSINSKI,DE

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