METHOD OF OBTAINING ESTHER-COAL WAX
SUCHKOV VITALIJ V,SU, ZHIGALOVA NELLI P,SU, LOGUNOV YURIJ V,SU, NOVAKOVSKIJ EVGENIJ M,SU, BASALAEVA LIDIYA N,SU
Year of Publication 15.08.1979
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Year of Publication 15.08.1979
Patent