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Application filed by Vladimir Ing Siroky, Jarmila Lokajova, Rudolf Ing LangerfiledCriticalVladimir Ing Siroky
Priority to CS841972ApriorityCriticalpatent/CS242366B1/en
Publication of CS197284A1publicationCriticalpatent/CS197284A1/en
Publication of CS242366B1publicationCriticalpatent/CS242366B1/en