Some signaling systems in metal-mine shafts / by McHenry Mosier and E. J. Gleim.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, DC] :
U.S. Dept. of the Interior, Bureau of Mines,
1939.
|
| Series: | Information circular (United States. Bureau of Mines) ;
7083. |
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Search Result 1
Some signaling systems in metal-mine shafts.
Published 1939
Full Text (via ProQuest)
Government Document
eBook
Search Result 2
Some signaling systems in metal-mine shafts.
Published 1939
Full Text (via ProQuest)
Government Document
eBook