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A ventilation study of the Graceton Coal & Coke Co. mine, Graceton, Pa.
| Author: | Currie, Robert Dewey, |
|---|---|
| Additional Authors: | Maize, Earl R. |
| Year: | 1932 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| SUDOC: | C 22.11:6614 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6614 |
| Subjects: | Mine ventilation |
| Coal mines and mining--Pennsylvania--Safety measures | |
| Link: | https://hdl.handle.net/2027/mdp.39015086485466 |
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