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 PL95309300ApriorityCriticalpatent/PL174491B1/en
Publication of PL309300A1publicationCriticalpatent/PL309300A1/en
Publication of PL174491B1publicationCriticalpatent/PL174491B1/en