VALVE UNIT FOR POWER MINE ROOF SUPPORT CONTROL

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Bibliographic Details
Main Authors YUREV SERGEJ F,SU, MAKAROV ALEKSANDR M,SU, KUVSHINOV VADIM M,SU
Format Patent
LanguageEnglish
Published 23.07.1981
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Bibliography:Application Number: SU19792839451