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Application filed by Zdenek Doc Ing Csc Novak, Jaroslav JanotafiledCriticalZdenek Doc Ing Csc Novak
Priority to CS845060ApriorityCriticalpatent/CS241680B1/en
Publication of CS506084A1publicationCriticalpatent/CS506084A1/en
Publication of CS241680B1publicationCriticalpatent/CS241680B1/en