Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alois Ing Vyhlidal, Vaclav CernyfiledCriticalAlois Ing Vyhlidal
Priority to CS877353ApriorityCriticalpatent/CS272109B1/en
Publication of CS735387A1publicationCriticalpatent/CS735387A1/en
Publication of CS272109B1publicationCriticalpatent/CS272109B1/en