Author: | Cash, Frank E. |
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Additional Authors: | Saxon, C. E. |
Year: | 1933 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
SUDOC: | C 22.11:6712 |
Series: | Information circular / United States Department of Commerce, Bureau of Mines ; |
Report Number: | 6712 |
Subjects: | Coal mines and mining--Safety measures |
Safety lamps--Alabama | |
Electric lamps, Portable--Alabama | |
Link: | https://hdl.handle.net/2027/mdp.39015086485953 |