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 Andrej Ing Zelem, Podstanicky AlexanderfiledCriticalAndrej Ing Zelem
Priority to CS695684ApriorityCriticalpatent/CS244321B3/cs
Publication of CS695684A1publicationCriticalpatent/CS695684A1/cs
Publication of CS244321B3publicationCriticalpatent/CS244321B3/cs