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Publication of BE683858ApublicationCriticalpatent/BE683858A/fr
E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
E21C29/14—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
Installation pour effecteur des opérations sur des objets en des postes de stationnement momentanés comprenant un appareillage de transfert de ces objets