Author : Simon Harry Ash
Publisher :
Page : 8 pages
File Size : 19,25 MB
Release : 1932
Category : Coal mines and mining
ISBN :
[PDF] Falls Of Roof And Coal In Washington Mines eBook
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FALLS OF ROOF AND COAL IN WASHINGTON MINES.
Author :
Publisher :
Page : 50 pages
File Size : 25,50 MB
Release : 1932
Category :
ISBN :
Falls of Roof and Coal in Mines Operating in the Pittsburgh Coal Bed, Panhandle District, West Virginia
Author : James Washington Paul
Publisher :
Page : 36 pages
File Size : 13,96 MB
Release : 1932
Category : Coal mine accidents
ISBN :
Falls of Roof and Coal in Mines Operating in the Pittsburgh Coal Bed in Marion and Monongalia Counties, W. Va
Author : James Washington Paul
Publisher :
Page : 46 pages
File Size : 16,32 MB
Release : 1932
Category : Coal mine accidents
ISBN :
Falls of Roof and Coal in Mines Operating in the Sewickley Coal Bed in Monongalia County, W. Va
Author : James Washington Paul
Publisher :
Page : 36 pages
File Size : 30,30 MB
Release : 1932
Category : Coal mine accidents
ISBN :
How to Prevent Death and Injury from Falls of Roof in Coal Mines
Author : James Washington Paul
Publisher :
Page : 16 pages
File Size : 41,76 MB
Release : 1932
Category : Coal mine accidents
ISBN :
Falls of Roof in Bituminous Coal Mines
Author : James Washington Paul
Publisher :
Page : 42 pages
File Size : 47,53 MB
Release : 1929
Category : Bituminous coal
ISBN :
Factors Affecting Falls of Roof and Coal
Author : James Washington Paul
Publisher :
Page : 4 pages
File Size : 16,86 MB
Release : 1929
Category : Coal mine accidents
ISBN :
A Study of Falls of Roof and Coal in Mines of Harrison County, W.Va
Author : James Washington Paul
Publisher :
Page : 30 pages
File Size : 17,23 MB
Release : 1931
Category : Coal mines and mining
ISBN :
A Study of Falls of Roof and Coal in Mines in the Number 8 Field of Eastern Ohio
Author : J. W. Paul
Publisher :
Page : 66 pages
File Size : 19,91 MB
Release : 1931
Category : Coal mines and mining
ISBN :