Mine-timber Preservation by the Collar Method
Author : Edward Roberts
Publisher :
Page : 34 pages
File Size : 13,80 MB
Release : 1953
Category : Mine timbering
ISBN :
Author : Edward Roberts
Publisher :
Page : 34 pages
File Size : 13,80 MB
Release : 1953
Category : Mine timbering
ISBN :
Author :
Publisher :
Page : 1168 pages
File Size : 35,61 MB
Release : 1953
Category : Mineral industries
ISBN :
Author : National Agricultural Library (U.S.)
Publisher :
Page : 766 pages
File Size : 21,71 MB
Release : 1967
Category : Agriculture
ISBN :
Author : Hiram Brown Humphrey
Publisher :
Page : 104 pages
File Size : 13,95 MB
Release : 1956
Category : Industrial hygiene
ISBN :
Author :
Publisher :
Page : 574 pages
File Size : 18,98 MB
Release : 1953
Category : Mineral industries
ISBN :
Author : W. H. Kerns
Publisher :
Page : 178 pages
File Size : 12,77 MB
Release : 1948
Category : Bedford County (Pa.)
ISBN :
Author :
Publisher :
Page : 492 pages
File Size : 31,66 MB
Release : 1953
Category : Anthracite coal industry
ISBN :
Author : Everett Perry Carman
Publisher :
Page : 770 pages
File Size : 19,49 MB
Release : 1955
Category : Anthracite coal
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 146 pages
File Size : 24,88 MB
Release : 1958
Category : Coal
ISBN :
Author :
Publisher :
Page : 1026 pages
File Size : 15,94 MB
Release : 1950
Category : Mines and mineral resources
ISBN :