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Application filed by Pfrogner Frantisek Doc Ing C, Vacik PetrfiledCriticalPfrogner Frantisek Doc Ing C
Priority to CS61390priorityCriticalpatent/CZ278501B6/cs
Publication of CS9000613A2publicationCriticalpatent/CS9000613A2/cs
Publication of CZ278501B6publicationCriticalpatent/CZ278501B6/cs