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Application filed by Vladimir A Obuchov, Vladimir G Grigorjan, Dmitrij B Lomonosov, Vadim I Ivanov, Vladimir A KrotkovfiledCriticalVladimir A Obuchov
Priority to CS812909ApriorityCriticalpatent/CS244507B1/en
Publication of CS290981A1publicationCriticalpatent/CS290981A1/en
Publication of CS244507B1publicationCriticalpatent/CS244507B1/en