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 Rolnicza, Przed Przemyslowo Handlowe Cen, Polski Zwiazek Gluchych ZakladfiledCriticalAkad Rolnicza
Priority to PL25640885ApriorityCriticalpatent/PL141666B2/en
Publication of PL256408A2publicationCriticalpatent/PL256408A2/en
Publication of PL141666B2publicationCriticalpatent/PL141666B2/en