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Franz Haniel mine
1948
Persistent link: https://www.econbiz.de/10001534427
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Economic comparisons between the various types of underground locomotives
Koch, Heinrich - 1947
Persistent link: https://www.econbiz.de/10001534452
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The efficient utilisation of shaft space
Schäfer, Hermann - 1947
Persistent link: https://www.econbiz.de/10001534468