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Application filed by Dvorak Bohumir, Pasek Josef, Lubojacky Jaromir, Pavlas Pavel, Cirova Alena, Jakub RosenthalfiledCriticalDvorak Bohumir
Priority to CS86516ApriorityCriticalpatent/CS253798B1/en
Publication of CS51686A1publicationCriticalpatent/CS51686A1/en
Publication of CS253798B1publicationCriticalpatent/CS253798B1/en