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UMA ESTRUCTURA MAGNETICA DESTINADA A FACILITAR A CARGA SIMULTÂNEA DE CIRCUITOS PHYSICOS E DERIVADOS EM TELEPHONES

0.1 - Acervo Histórico de patentes do INPI-15067
Item
28/06/1918

Part of Acervo Histórico de patentes do INPI

UMA ESTRUTURA MAGNÉTICA DESTINADA A FACILITAR A CARGA SIMULTÂNEA DE CIRCUITOS FÍSICOS E DERIVADOS EM TELEFONES

WESTERN ELECTRIC COMPANY, LIMITED

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