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 Inst Barwnikow I Produktow OrgfiledCriticalInst Barwnikow I Produktow Org
Priority to PL29720692ApriorityCriticalpatent/PL167756B1/en
Publication of PL297206A1publicationCriticalpatent/PL297206A1/en
Publication of PL167756B1publicationCriticalpatent/PL167756B1/en