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Application filed by Josef Kavalir, Lubomir NohynekfiledCriticalJosef Kavalir
Priority to CS8310069ApriorityCriticalpatent/CS243638B1/en
Publication of CS1006983A1publicationCriticalpatent/CS1006983A1/en
Publication of CS243638B1publicationCriticalpatent/CS243638B1/en