Active List of Permissible Explosives and Blasting Devices Approved Prior to June 30. 1931
Author :
Publisher :
Page : 18 pages
File Size : 23,67 MB
Release : 1931
Category : Coal mines and mining
ISBN :
Author :
Publisher :
Page : 18 pages
File Size : 23,67 MB
Release : 1931
Category : Coal mines and mining
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 16 pages
File Size : 24,12 MB
Release : 1932
Category : Blasting
ISBN :
Author :
Publisher :
Page : 28 pages
File Size : 17,23 MB
Release : 1940
Category : Blasting
ISBN :
Author : Scott Turner
Publisher :
Page : 2 pages
File Size : 39,16 MB
Release : 1931
Category : Coal mines and mining
ISBN :
Author :
Publisher :
Page : 16 pages
File Size : 47,59 MB
Release : 1930
Category : Explosives
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 18 pages
File Size : 20,82 MB
Release : 1933
Category : Coal mines and mining
ISBN :
Author : Scott Turner
Publisher :
Page : 2 pages
File Size : 39,13 MB
Release : 1931
Category : Explosives
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Author : Joseph Edgar Tiffany
Publisher :
Page : 26 pages
File Size : 18,29 MB
Release : 1941
Category : Blasting
ISBN :
Author : Scott Turner
Publisher :
Page : 2 pages
File Size : 38,39 MB
Release : 1932
Category : Explosives
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 18 pages
File Size : 47,24 MB
Release : 1934
Category : Coal mines and mining
ISBN :