APPARATUS FOR FORMING EXPANSION IN LARGE-DIAMETER BOREHOLE

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Bibliographic Details
Main Authors SOKOLOVSKIJ ALEKSANDR G,SU, KHISNYJ NIKOLAJ P,SU, ASMOLOV VLADIMIR A,SU
Format Patent
LanguageEnglish
Published 23.03.1985
Edition4
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Bibliography:Application Number: SU19833538751