Keywords: Pedro Narciso Arata - Firma.svg Pedro N Arata 1849 - 1922 an Argentine pharmacist chemist and professor Pedro N Arata 1849 - 1922 un farmacéutico químico y profesor argentino Pedro_Narciso_Arata_-_Firma jpg 2011-12-27 18 53 UTC Pedro_Narciso_Arata_-_Firma jpg ¿ derivative work Mr Ajedrez talk Vector graphic Mr Ajedrez Pedro_Narciso_Arata_-_Firma jpg PD-old Original upload log This image is a derivative work of the following images File Pedro_Narciso_Arata_-_Firma jpg licensed with PD-old 2011-12-27T04 44 04Z Agus ferrocarril 456x215 11401 Bytes <nowiki> Pedro N Arata 1849 - 1922 an Argentine pharmacist chemist and professor Pedro N Arata 1849</nowiki> Uploaded with derivativeFX Pedro Narciso Arata |