Способ возведения бесшовной бетонной крепи шахтного ствола

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Bibliographic Details
Main Authors GRINEV A.A, MARENNYJ YA.I
Format Patent
LanguageRussian
Published 30.11.1960
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Bibliography:Application Number: SU19600658765