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 Akad Ekonom Oskara LangegofiledCriticalAkad Ekonom Oskara Langego
Priority to PL29928093ApriorityCriticalpatent/PL171383B1/en
Publication of PL299280A1publicationCriticalpatent/PL299280A1/en
Publication of PL171383B1publicationCriticalpatent/PL171383B1/en