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 Frantisek Ing Harlass, Josef Stark, Parizek Bedrich, Mikulas Ing HolasfiledCriticalFrantisek Ing Harlass
Priority to CS842618ApriorityCriticalpatent/CS239469B1/en
Publication of CS261884A1publicationCriticalpatent/CS261884A1/en
Publication of CS239469B1publicationCriticalpatent/CS239469B1/en