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Application filed by Vaclav Hrabak, Pavel Ing Csc Vejnar, Horak Vaclav, Frantisek Stybal, Zdena Kenclova, Josef MalinafiledCriticalVaclav Hrabak
Priority to CS83962ApriorityCriticalpatent/CS232583B1/en
Publication of CS96283A1publicationCriticalpatent/CS96283A1/en
Publication of CS232583B1publicationCriticalpatent/CS232583B1/en