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UM PROCESSO APERFEIÇOADO DE SEPARAÇÃO MAGNETICA DE MATERIAS POR VIA HUMIDA

0.1 - Acervo Histórico de patentes do INPI-8749
Item
16/12/1909

Part of Acervo Histórico de patentes do INPI

UM PROCESSO APERFEIÇOADO DE SEPARAÇÃO MAGNÉTICA DE MATÉRIAS POR VIA ÚMIDA

GEORG ULLRICH

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