Official changes in the active list of permissible explosives and blasting devices for December, 1930 / Scott Turner.
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Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.?] :
U.S. Dept. of Commerce, Bureau of Mines,
1930.
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Series: | Report of investigations (United States. Bureau of Mines) ;
3058. |
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