Shot firing in coal mines by electricity controlled from outside
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Author
Contributions
- Breth, N. V., joint author. - Contributor
- Means, Charles M., joint author. - Contributor
Publication
1915 - Govt. Print. Off., Washington, District of Columbia
Language
English
Word Count
9,000 words, Guess
Page Count
36 pages
Identifiers
- Library of Congress Control Number15026684
- OCLC Control Number14119972
- Open LibraryOL6582584M
Classifications
- LCCTN1 .U6 no. 108
Subjects
Series Statement
- [U.S.] Bureau of mines. Technical paper
- 108
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