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Application filed by Belunek Bohumir, Josef Ing Pastrnak, Odstrcil Libor, Bedrich Bicanek, Sava KubinfiledCriticalBelunek Bohumir
Priority to CS8410528ApriorityCriticalpatent/CS242096B1/en
Publication of CS1052884A1publicationCriticalpatent/CS1052884A1/en
Publication of CS242096B1publicationCriticalpatent/CS242096B1/en