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Application filed by Bosman Josef, Bystricky Josef, Josef Ing Csc Skala, Frycek VaclavfiledCriticalBosman Josef
Priority to CS87848ApriorityCriticalpatent/CS265014B1/en
Publication of CS84887A1publicationCriticalpatent/CS84887A1/en
Publication of CS265014B1publicationCriticalpatent/CS265014B1/en