Fire and ventilation doors in metal mines
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Publication
1922 - The Bureau., (Washington), District of Columbia
Language
English
Word Count
0 words, Guess
Page Count
0 pages
Identifiers
- Open LibraryOL59647051M
- OCLC Control Number41489715
Subjects
Series Statement
- U. S. Bureau of Mines. Reports of Investigations. Serial -- No. 2426
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