Respiratory protective devices approved by the Bureau of Mines as of October 16, 1958 / E.J. Kloos and S.J. Pearce.
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Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1959.
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Series: | Information circular (United States. Bureau of Mines) ;
7885. |
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