DRILLING MUD
LEVIK NIKOLAJ P,SU, BUGAENKO ZINAIDA V,SU, FILIPPOV EVGENIJ F,SU, VELEZHEVA NINA T,SU, PENKOV ALEKSANDR I,SU, SAGIN VLADIMIR I,SU
Year of Publication 30.01.1992
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Year of Publication 30.01.1992
Patent
DRILLING MUD
LEVIK NIKOLAJ P,SU, BUGAENKO ZINAIDA V,SU, FILIPPOV EVGENIJ F,SU, SUKHANOV VADIM B,SU, RAKOV GRIGORIJ V,SU, RASTEGAEV BORIS A,SU, VELEZHEVA NINA T,SU, CHERNENKO ANATOLIJ M,SU, PENKOV ALEKSANDR I,SU, GAVRILOVA LYUDMILA V,SU, PENZHOYAN ALEKSANDR A,SU
Year of Publication 15.01.1989
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Year of Publication 15.01.1989
Patent