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Application filed by Vaclav Ing Malasek, Manek Oldrich, Masek Vaclav, Jaroslav RimanfiledCriticalVaclav Ing Malasek
Priority to CS835343ApriorityCriticalpatent/CS239272B1/en
Publication of CS534383A1publicationCriticalpatent/CS534383A1/en
Publication of CS239272B1publicationCriticalpatent/CS239272B1/en