ARRANGEMENT FOR CLEANING INTERNAL SURFACE OF PIPE-LINE
YANOVSKIJ YURIJ G,SU, KRUGLYAK ALEKSANDR M,SU, PANCHENKO VALERIJ P,SU, KRYAZHEVSKIKH NIKOLAJ F,SU, KORNOPELEV VLADIMIR A,SU
Year of Publication 23.08.1990
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Year of Publication 23.08.1990
Patent