ROD FOR DRILLING CURVILINEAR BLAST HOLES

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Bibliographic Details
Main Author	EFREMOV ALEKSANDR V,SU
Format	Patent
Language	English
Published	25.10.1977
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: SU19752199979