71313420
Apr 16, 1931
Aug 23, 1932
CERRO DE PASCO COPPER CORPORATION
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COPPER BULLION, LEAD BULLION, ZINC CONCENTRATES, LEAD CONCENTRATES; FLUE DUST FROM COPPER CONVERTERS CONTAINING CHIEFLY LEAD; BISMUTH METAL; AND METAL ALLOYS CONTAINING CHIEFLY BISMUTH AND LEAD