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    local holding
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    local holding
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    local holding
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    local holding
    by Spackeler, Georg , Published in Bergbau (Tiefbau) (1954)
    In collection: Bergbau (Tiefbau)
    Book Component Part
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    local holding
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    local holding
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    local holding
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    local holding
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    local holding
    by Spackeler, Georg , 1925
    Book
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    local holding
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    local holding
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    online resource
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    local holding
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    local holding
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    local holding
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    local holding
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    local holding
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    local holding