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Application filed by Burian Alois, Kristek Jiri, Sedlak Josef, Bohumir Ing PolasekfiledCriticalBurian Alois
Priority to CS877127ApriorityCriticalpatent/CS268323B1/en
Publication of CS712787A1publicationCriticalpatent/CS712787A1/en
Publication of CS268323B1publicationCriticalpatent/CS268323B1/en