METHOD OF SAFEGUARDING A DEVELOPMENT WORKING

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Bibliographic Details
Main Authors LOPUKHOV NIKOLAJ M,SU, SOBOLEV VIKTOR V,SU, KOMISSAROV STANISLAV N,SU, EFIMENKO ALEKSANDR A,SU
Format Patent
LanguageEnglish
Russian
Published 15.12.1989
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Bibliography:Application Number: SU19874328578