Author: D. S. HarperPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 26
Book Description
Longwall Mining with a German Coal Planer
Author: D. S. HarperModified Longwall Mining with German Coal Planers
Author: Wilbur A. HaleyPublisher:
ISBN:
Category : Coal-mining machinery
Languages : en
Pages : 42
Book Description
Modified Longwall Mining with a German Coal Planer (plow) in the Pocohontas No. 4 Coal Bed, Helen, W. Va
Author: Wilbur A. HaleyPublisher:
ISBN:
Category : Coal-mining machinery
Languages : en
Pages : 44
Book Description
Longwall Mining in Bituminous Coal Mines with Planers, Shearer- Loaders, and Self-advancing Hydraulic Roof Supports
Author: J. J. ShieldsPublisher:
ISBN:
Category : Coal-mining machinery
Languages : en
Pages : 44
Book Description
Report of Investigations
Author: Design and Operation of the Coal Planer, Ruhr District, Germany
Author: John W. BuchPublisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 104
Book Description
Bibliography of Bureau of Mines Investigations of Coal and Its Products, 1910-60
Author: United States. Bureau of Mines. Division of Bituminous CoalPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 172
Book Description
Information Circular
Author: List of Publications Issued by the Bureau of Mines, with Subject and Author Index
Author: United States. Bureau of MinesPublisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 60
Book Description
![Report of Investigations. [no.2002 to No.7380] PDF](https://books.google.com/books/content/images/frontcover/Mkhh5g6lSL0C?fife=w80-h100)
Author: