Item CR-AN-AH-MAG-PATEN-000098 - Solicitud de Charles Butters para inscribir el invento: Procedimiento perfeccionado para el tratamiento de minerales refractarios de oro y plata
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CR AN CR-AN-AH-MAG-PATEN-000098
Title
Solicitud de Charles Butters para inscribir el invento: Procedimiento perfeccionado para el tratamiento de minerales refractarios de oro y plata
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1912-11-21 - ? (Creation)
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