Author: | Pickard, Byron O., |
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Year: | 1922 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:2380 |
Series: | Report of investigations / United States. Bureau of Mines ; |
Report Number: | 2380 |
Subjects: | Mine ventilation |
Compressed air | |
Geophone | |
Mines and mineral resources--Equipment and supplies | |
Compressed air--Safety measures | |
Mines and mineral resources--Equipment and supplies--Maintenance and repair | |
Link: | https://hdl.handle.net/2027/mdp.39015086546663 |