SCREW FACE ENGINE

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Bibliographic Details
Main Authors KOCHNEV A.M, NIKOMAROV S.S
Format Patent
LanguageEnglish
Russian
Published 30.06.1993
Edition5
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: SU19772476334