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 Gorniczo HutniczafiledCriticalAkad Gorniczo Hutnicza
Priority to PL26982687ApriorityCriticalpatent/PL151677B1/en
Publication of PL269826A1publicationCriticalpatent/PL269826A1/en
Publication of PL151677B1publicationCriticalpatent/PL151677B1/en