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Application filed by Veleslav Sperlin, Jan PolacekfiledCriticalVeleslav Sperlin
Priority to CS852017ApriorityCriticalpatent/CS243377B1/en
Publication of CS201785A1publicationCriticalpatent/CS201785A1/en
Publication of CS243377B1publicationCriticalpatent/CS243377B1/en