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method and device for suction and transport of materials of all kinds in pipelines by means of preßluftdüsen on arbitrarily long distances, especially the tarnished by versatzgut in bergbauen etc.
method and device for suction and transport of materials of all kinds in pipelines by means of preßluftdüsen on arbitrarily long distances, especially the tarnished by versatzgut in bergbauen etc.