Roof Movement Study of Mechanized Retreating Longwall Operation, Lancashire No. 15 Mine, Bakerton, Cambria County, Pa
Author: Anthony J. Barry
Publisher:
Published: 1954
Total Pages: 54
ISBN-13:
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Technical Paper
Author: United States. National Resources Planning Board
Publisher:
Published: 1941
Total Pages: 408
ISBN-13:
DOWNLOAD EBOOKStudies of Roof Movement in Coal Mines
Author:
Publisher:
Published: 1937
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKResearch and Progress in the Production and Use of Coal
Author: United States. Bureau of Mines
Publisher:
Published: 1941
Total Pages: 56
ISBN-13:
DOWNLOAD EBOOKReport of Investigations
Author:
Publisher:
Published: 1940
Total Pages: 722
ISBN-13:
DOWNLOAD EBOOKCoal Mine Roof Rating (CMRR)
Author: Gregory M. Molinda
Publisher:
Published: 1994
Total Pages: 92
ISBN-13:
DOWNLOAD EBOOKAnnual Report of Research and Technologic Work of Explosives, Explosions, and Flames
Author: Bernard Lewis
Publisher:
Published: 1947
Total Pages: 122
ISBN-13:
DOWNLOAD EBOOKTechnical Paper - Bureau of Mines
Author: United States. Bureau of Mines
Publisher:
Published:
Total Pages: 1212
ISBN-13:
DOWNLOAD EBOOKCatalogue of the Public Documents of the [the Fifty-third] Congress [to the 76th Congress] and of All Departments of the Government of the United States
Author: United States. Superintendent of Documents
Publisher:
Published: 1896
Total Pages: 2636
ISBN-13:
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