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A mine dam to recover flooded workings
Plan and description of how difficulties were overcome in constructing a dam to permit un-watering flooded coal-mine workings. (1800 w.) (No. 86431)
A mine dam to recover flooded workings
Plan and description of how difficulties were overcome in constructing a dam to permit un-watering flooded coal-mine workings. (1800 w.) (No. 86431)
A mine dam to recover flooded workings
Eng Min Jour
Haertter, John H. (Autor:in)
1907
Aufsatz (Zeitschrift)
Englisch
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