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Sideboard device for improved face ventilation in coal mines
Sideboard device for improved face ventilation in coal mines
Sideboard device for improved face ventilation in coal mines
Divers, Edward F. (author) / LaScola, John C. (author) / Kissell, Fred N. (author)
1979
10 S
Report
Unknown
British Library Online Contents | 2000
|Face ventilation in underground bituminous coal mines
Engineering Index Backfile | 1969
|Face ventilation in underground bituminous coal mines
Engineering Index Backfile | 1966
|Survey of face ventilation practices in coal mines
Engineering Index Backfile | 1960
|