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Application filed by Kazimierz PiechowiczfiledCriticalKazimierz Piechowicz
Priority to PL29260691ApriorityCriticalpatent/PL165912B1/en
Publication of PL292606A1publicationCriticalpatent/PL292606A1/en
Publication of PL165912B1publicationCriticalpatent/PL165912B1/en