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Dry-process-sprayed coal mine sealants,a progress report
Dry-process-sprayed coal mine sealants,an updated progress report
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Published Year
1970-1979 (2) *
Subject
Coal mines and mining (2)
Mining engineering (2)
Sealing compounds (2)
Author
Fraley, J. E., (2) *
Cox, D. J. (1)
