Drivage, development and support of roadways and faces in deep mines, 1,000 metres and over, and consequently in more difficult mining, geological and atmospheric conditions : note / by the Secretariat.
1985
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Details
Symbol
[E/]ECE/COAL/84
Title
Drivage, development and support of roadways and faces in deep mines, 1,000 metres and over, and consequently in more difficult mining, geological and atmospheric conditions : note / by the Secretariat.
Date
Geneva : UN, 11 Apr. 1985.
Description
1, 8 p.
Notes
Transmits consolidated report ([E/ECE/]COAL/GE.4/R.23) prepared by the Federal Republic of Germany.