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Considers means of guarding the health of miners by sanitary work. (2000 w.) (No. 44587 N)
Considers means of guarding the health of miners by sanitary work. (2000 w.) (No. 44587 N)
Sanitation for mine locations
L Superior Min Inst
Moulton, W.H. (author)
1913
Article (Journal)
English
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