HYDROISOLATION MEANS von NAJJDENOV,NAJJDEN T, MINKOV,DIMITR M, IVANOV,GEORGI A, VLKOVA,MARIJA D, VLKOV,PAVEL I, PALICHEV,TODOR V, IVANOV,ATANAS S, KORALSKI,GEORGI I, PETKOV,PETKO S

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AN EMULSIVE HYDROISOLATIVE MATERIAL COMPOUND von VLKOV,PAVEL I, ZHEKOV,KIRIL V, CZOLAKOV,KOSTADIN S

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A METHOD OF OBTAINING A FUEL FOR THERMO-TECHNICAL EQUIPMENTS von RALEVA,TINKA D, VLKOV,PAVEL I, SARIEV,IVAN T, GEORGIEV,GEORGI P, VASILEV,RADKO V

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METHOF AND COMPOSITION FOR OBTAINING SOFT ASPHALT-BASED OXIDIZED ROAD-COATING BITUMENS von KIROV,KIRO V, VLKOV,PAVEL I, DIMOVA,ZARAFINA Z, DRALCZEVA,STANKA N, KALOJANOV,PETKO D

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METHOD FOR THE PRODUCTION OF RESIDUAL BITUMENS von NIKOLOV,BOGDAN M, MINKOV,DIMITR M, DRAKOV,TODOR A, IVANOV,GEORGI A, MILANOV,EMIL Z, NIKOLOVA,SLAVEJJKA ZH, VLKOV,PAVEL I, CHANEV,GEORGI D, IVANOV,ATANAS S, KOVACHEV,PETR I

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DEMULSIFIER FOR DESALTING AND DEWATERING OF PETROLEUM AND METHOD OF ITS OBTAINING von KANARIEV,KOSTADIN G, VLOV,ILIJA T, MINKOV,DIMITR M, PRODANOVA,MARIJA G, KOVACHEVA,KERKA I, IVANOV,GEORGI A, MANCAROV,BOGDAN Z.,BG MAZHDRAKOV,BOJAN G, IVANOV,ATANAS S, PREMJANOVA,JJORDANKA K, SIMEONOV,ALEKSANDR K, VLKOV, PAVEL I

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METHOD FOR PREPARING OF DISTILLATED EARTH- OIL FRACTIONS von PRODANOVA,MARIJA G.,BG, PAPUDZHIKOV,GEORGI D.,BG, PETKOV,PETKO S.,BG, KHRISTOFOROV,SOKRAT S.,BG, KORALSKI,GEORGI I.,BG, NAJJDENOV,NAJJDEN T.,BG, PETKOVA,STEFKA P.,BG, V'LKOV,PAVEL I.,BG, L'VCHIEVA,DIMITRIJJKA V.,BG, IVANOV,ATANAS S.,BG, IVANOV,GEORGI A.,BG, NIKOLOVA,VENETA N.,BG, MINKOV,DIMIT'R M.,BG

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