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Application filed by Cermak Jan, Antonin Ing Csc Havlicek, Pekarek Oldrich, Milan Ing Csc Nemecek, Jiri Fuchs, Jan Spirek, Mirslav SeverafiledCriticalCermak Jan
Priority to CS86458ApriorityCriticalpatent/CS257571B1/en
Publication of CS45886A1publicationCriticalpatent/CS45886A1/en
Publication of CS257571B1publicationCriticalpatent/CS257571B1/en