Active List of Permissible Explosives and Blasting Devices Approved Prior to June 30, 1940
Author :
Publisher :
Page : 28 pages
File Size : 29,13 MB
Release : 1940
Category : Blasting
ISBN :
Author :
Publisher :
Page : 28 pages
File Size : 29,13 MB
Release : 1940
Category : Blasting
ISBN :
Author : Joseph Edgar Tiffany
Publisher :
Page : 26 pages
File Size : 40,44 MB
Release : 1941
Category : Blasting
ISBN :
Author :
Publisher :
Page : 16 pages
File Size : 43,82 MB
Release : 1930
Category : Explosives
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Author : United States. Bureau of Mines
Publisher :
Page : 18 pages
File Size : 39,37 MB
Release : 1933
Category : Coal mines and mining
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Author :
Publisher :
Page : 24 pages
File Size : 37,63 MB
Release : 1938
Category : Blasting
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Author : United States. Bureau of Mines
Publisher :
Page : 18 pages
File Size : 41,44 MB
Release : 1934
Category : Coal mines and mining
ISBN :
Author :
Publisher :
Page : 18 pages
File Size : 41,29 MB
Release : 1931
Category : Coal mines and mining
ISBN :
Author :
Publisher :
Page : 30 pages
File Size : 46,51 MB
Release : 1939
Category : Blasting
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 16 pages
File Size : 18,65 MB
Release : 1932
Category : Blasting
ISBN :
Author :
Publisher :
Page : 14 pages
File Size : 50,15 MB
Release : 1932
Category : Coal mines and mining
ISBN :