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Application filed by Ivanov Genadij M, Burysek Frantisek, Zdenek Silar, Hortlik Frantisek, Genadij V Ing ZemskovfiledCriticalIvanov Genadij M
Priority to CS867823ApriorityCriticalpatent/CS256814B1/en
Priority to SU877774543Aprioritypatent/SU1601227A1/en
Publication of CS782386A1publicationCriticalpatent/CS782386A1/en
Publication of CS256814B1publicationCriticalpatent/CS256814B1/en