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Application filed by Zdzisław DąbczyńskifiledCriticalZdzisław Dąbczyński
Priority to PL117809UpriorityCriticalpatent/PL64706Y1/en
Publication of PL117809U1publicationCriticalpatent/PL117809U1/en
Publication of PL64706Y1publicationCriticalpatent/PL64706Y1/en