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Supports of mine workings shown at German mining exhibition in 1958
Steel arching, connections and joints, friction props, and hydraulic props.
Supports of mine workings shown at German mining exhibition in 1958
Steel arching, connections and joints, friction props, and hydraulic props.
Supports of mine workings shown at German mining exhibition in 1958
Der Grubenausbau auf der Bergbauaussetllung 1958
Schaefer, W. (author)
1959
10 pages
Article (Journal)
German
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