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Application filed by Vaclav Stursa, Milos Ing Ondrejik, Vladimir Ing NemecfiledCriticalVaclav Stursa
Priority to CS866353ApriorityCriticalpatent/CS262257B1/en
Publication of CS635386A1publicationCriticalpatent/CS635386A1/en
Publication of CS262257B1publicationCriticalpatent/CS262257B1/en