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Application filed by Leon Pietraszek, Kosek JirifiledCriticalLeon Pietraszek
Priority to CS8410083ApriorityCriticalpatent/CS242092B1/en
Publication of CS1008384A1publicationCriticalpatent/CS1008384A1/en
Publication of CS242092B1publicationCriticalpatent/CS242092B1/en