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UM NOVO SYSTEMA DE TELEPHONE AUTOMATICO SELECTIVO

0.1 - Acervo Histórico de patentes do INPI-17165
Item
09/07/1920

Part of Acervo Histórico de patentes do INPI

UM NOVO SISTEMA DE TELEFONE AUTOMÁTICO SELETIVO

RUBEN CHRISTOPHER MILLER HASTINGS

UM NOVO SYSTEMA DE TELEPHONE AUTOMATICO SELECTIVO

0.1 - Acervo Histórico de patentes do INPI-17166
Item
09/07/1920

Part of Acervo Histórico de patentes do INPI

UM NOVO SISTEMA DE TELEFONE AUTOMATICO SELETIVO

RUBEN CHRISTOPHER MILLER HASTINGS

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