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Application filed by Karel Ing Prusa, Oldrich Ing Smejkal, Pendl Jiri, Emma Rndr Csc Ujcova, Frantiseking Csc Machek, Vladimir Clen Kore KrumphanzelfiledCriticalKarel Ing Prusa
Priority to CS846870ApriorityCriticalpatent/CS240131B1/en
Publication of CS687084A1publicationCriticalpatent/CS687084A1/en
Publication of CS240131B1publicationCriticalpatent/CS240131B1/en