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Application filed by Wladyslaw Sieradzki, Zbigniew CzagowiecfiledCriticalWladyslaw Sieradzki
Priority to PL29354492ApriorityCriticalpatent/PL166725B1/en
Publication of PL293544A1publicationCriticalpatent/PL293544A1/en
Publication of PL166725B1publicationCriticalpatent/PL166725B1/en