Author : United States. Bureau of Mines
Publisher :
Page : 124 pages
File Size : 13,63 MB
Release : 1945
Category : Coal mine accidents
ISBN :
[PDF] Falls Of Roof In Bituminous Coal Mines eBook
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Falls of Roof and Coal in Bituminous Coal-mines
Author : William Waugh Adams
Publisher :
Page : 10 pages
File Size : 50,21 MB
Release : 1925
Category : Bituminous coal
ISBN :
Falls of Roof in Bituminous Coal Mines
Author : James Washington Paul
Publisher :
Page : 42 pages
File Size : 14,43 MB
Release : 1929
Category : Bituminous coal
ISBN :
Falls of Roof
Author : John Joseph Vincent Forbes
Publisher :
Page : 20 pages
File Size : 17,3 MB
Release : 1951
Category : Bituminous coal industry
ISBN :
Falls of Roof and Coal in Bituminous Coal-mines
Author : William Waugh Adams
Publisher :
Page : 10 pages
File Size : 50,31 MB
Release : 1925
Category : Bituminous coal
ISBN :
Accidents from Falls of Roof and Coal in Bituminous-coal Mines, Coal-mine Accident-prevention Course
Author : United States. Mines Bureau
Publisher :
Page : 141 pages
File Size : 32,2 MB
Release : 1958
Category :
ISBN :
Places of Occurrence of Injury from Falls of Roof
Author : James Washington Paul
Publisher :
Page : 18 pages
File Size : 10,9 MB
Release : 1933
Category : Coal mine accidents
ISBN :
Falls of Coal and Rock on Man-trips in Bituminous-coal Mines
Author : Clarence Watson Owings
Publisher :
Page : 12 pages
File Size : 36,45 MB
Release : 1935
Category : Coal mine accidents
ISBN :
Falls of Roof
Author : J. J. Forbes
Publisher :
Page : 11 pages
File Size : 40,48 MB
Release : 1951
Category :
ISBN :
Accidents from Falls of Roof and Coal in Bituminous-coal Mines
Author : États-Unis. Bureau of Mines
Publisher :
Page : 141 pages
File Size : 25,67 MB
Release : 1958
Category : Coal mine accidents
ISBN :