Investigation of Longwall Gateroad Roof Support Characteristics at Powhatan No. 4 Mine
Author : Alexander May
Publisher :
Page : 490 pages
File Size : 42,16 MB
Release : 1982
Category : Acmite
ISBN :
Author : Alexander May
Publisher :
Page : 490 pages
File Size : 42,16 MB
Release : 1982
Category : Acmite
ISBN :
Author : Gregory J. Chekan
Publisher :
Page : 18 pages
File Size : 13,1 MB
Release : 1982
Category : Caving mining
ISBN :
Author :
Publisher :
Page : pages
File Size : 48,26 MB
Release : 1985
Category : Mineral industries
ISBN :
Author : K. O. Bennington
Publisher :
Page : 374 pages
File Size : 31,57 MB
Release : 1982
Category : Acmite
ISBN :
Author : Gregory J. Chekan
Publisher :
Page : pages
File Size : 32,9 MB
Release : 1982
Category :
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 148 pages
File Size : 14,23 MB
Release : 1984
Category : Fuel
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 646 pages
File Size : 25,77 MB
Release : 1987
Category : Mineral industries
ISBN :
Author : United States. Bureau of Mines. Branch of Editorial Services
Publisher :
Page : 658 pages
File Size : 13,53 MB
Release : 1987
Category : Mineral industries
ISBN :
Author :
Publisher :
Page : 28 pages
File Size : 12,63 MB
Release : 1985
Category : Gate roads (Mining)
ISBN :
Author :
Publisher :
Page : 1102 pages
File Size : 35,7 MB
Release : 1982
Category : Government publications
ISBN :