Active list of permissible explosives and blasting devices approved before Jan. 1, 1965 / by N.E. Hanna and P.A. Richardson.
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| Online Access: |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1965.
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| Series: | Information circular (United States. Bureau of Mines) ;
8249. |
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| Item Description: | At head of title: Department of Commerce--Bureau of Mines. No.8238-8250 issued bound together. Chiefly tables. |
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| Physical Description: | 10 pages ; 27 cm. |
| Bibliography: | Includes bibliographical references. |
| Action Note: | committed to retain |