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Dry-process-sprayed coal mine sealants,an updated progress report
| Author: | Fraley, J. E., |
|---|---|
| Year: | 1978 |
| Document Type: | BMRA |
| Issuing Agency: | Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:8266 |
| Series: | Report of investigations / Bureau of Mines ; |
| Report Number: | 8266 |
| Subjects: | Coal mines and mining |
| Mining engineering | |
| Sealing compounds | |
| Link: | https://hdl.handle.net/2027/mdp.39015078482901 |
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