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 Wieslaw Piasecki, Boguslaw WolnyfiledCriticalWieslaw Piasecki
Priority to PL29481892ApriorityCriticalpatent/PL166673B1/en
Publication of PL294818A1publicationCriticalpatent/PL294818A1/en
Publication of PL166673B1publicationCriticalpatent/PL166673B1/en