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Application filed by Володимир Дмитрович Яблочкін, Владимир Дмитриевич ЯблочкинfiledCriticalВолодимир Дмитрович Яблочкін
Priority to UA94096854ApriorityCriticalpatent/UA27881C2/en
Publication of UA27881C2publicationCriticalpatent/UA27881C2/en