Investigation of Longwall Gateroad Roof Support Characteristics at Powhatan No. 4 Mine
Author : Alexander May
Publisher :
Page : 490 pages
File Size : 36,52 MB
Release : 1982
Category : Acmite
ISBN :
Author : Alexander May
Publisher :
Page : 490 pages
File Size : 36,52 MB
Release : 1982
Category : Acmite
ISBN :
Author : Gregory J. Chekan
Publisher :
Page : 18 pages
File Size : 22,85 MB
Release : 1982
Category : Caving mining
ISBN :
Author :
Publisher :
Page : pages
File Size : 35,92 MB
Release : 1985
Category : Mineral industries
ISBN :
Author : K. O. Bennington
Publisher :
Page : 374 pages
File Size : 30,67 MB
Release : 1982
Category : Acmite
ISBN :
Author : Gregory J. Chekan
Publisher :
Page : pages
File Size : 31,16 MB
Release : 1982
Category :
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 148 pages
File Size : 16,20 MB
Release : 1984
Category : Fuel
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 646 pages
File Size : 40,79 MB
Release : 1987
Category : Mineral industries
ISBN :
Author : United States. Bureau of Mines. Branch of Editorial Services
Publisher :
Page : 658 pages
File Size : 36,33 MB
Release : 1987
Category : Mineral industries
ISBN :
Author :
Publisher :
Page : 28 pages
File Size : 13,47 MB
Release : 1985
Category : Gate roads (Mining)
ISBN :
Author :
Publisher :
Page : 1102 pages
File Size : 22,68 MB
Release : 1982
Category : Government publications
ISBN :