DE2631692
LITVINENKO, SEMEN K, IOFFE, BENJAMIN A, RYSCHOV, VLADIMIR D, KALNIN, ROBERT K, LEIKIN, ROMAN S, KULBERG, ANTON JA
Year of Publication 31.07.1980
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Year of Publication 31.07.1980
Patent
DE2631692
LITVINENKO, SEMEN K, IOFFE, BENJAMIN A, RYSCHOV, VLADIMIR D, KALNIN, ROBERT K, LEIKIN, ROMAN S, KULBERG, ANTON JA
Year of Publication 22.11.1979
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Year of Publication 22.11.1979
Patent