Safety in blasting at Ajo, Ariz. / by Allen D. Look and J. Howard Bird.
The Phelps Dodge Corp. New Cornelia Branch open-pit copper mine operated without a fatality in the drilling and blasting department from December 13, 1937, to April 1, 1947, and continuing. Between the dates named the explosives crews had a total of 746,520 man hours of exposure and handled 12,000 t...
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| Other title: | Western Federation of Miners and International Union of Mine, Mill, and Smelter Workers Research Department Library. |
| Format: | Government Document Book |
| Language: | English |
| Local Note: | Archives copy 2 Western Federation of Miners and International Union of Mine, Mill, and Smelter Workers Research Department Library. |
| Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1948.
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| Series: | Information circular (United States. Bureau of Mines) ;
7431. |
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I 28.27:7431
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| I 28.27:7431 | Available Place a Hold |