METHOD OF CONCENTRATION OF NATURAL NOBLE SPINEL
DAVYDCHENKO ANATOLIJ G,SU, DUNIN-BARKOVSKIJ ROMUALD L,SU, SMIRNOVA SOFIYA A,SU
Year of Publication 30.11.1977
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Year of Publication 30.11.1977
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METHOD OF COLOURING JEWELRY ODD WORK MINERALS
LAPTEV VLADIMIR A,SU, SAMOJLOVICH MIKHAIL I,SU, DUNIN-BARKOVSKIJ ROMUALD L,SU, LISITSYNA ELENA E,SU, ZADNEPROVSKIJ BORIS I,SU
Year of Publication 30.09.1981
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Year of Publication 30.09.1981
Patent