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Application filed by Sanislav Ing Didek, Frantisek Ferkl, Antonin Cap, Lojka Jaroslav, Stejskal Alois, Ursiny Petr Doc In8 Csc, Borovcova Zelmira, Kubovy JoseffiledCriticalSanislav Ing Didek
Priority to CS863555ApriorityCriticalpatent/CS256321B1/en
Publication of CS355586A1publicationCriticalpatent/CS355586A1/en
Publication of CS256321B1publicationCriticalpatent/CS256321B1/en