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Archivistische beschrijving

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APERFEIÇOAMENTO EM SYSTEMAS TELEPHONICOS AUTOMÁTICOS

0.1 - Acervo Histórico de patentes do INPI-14643
Stuk
04/12/1917

Part of Acervo Histórico de patentes do INPI

APERFEIÇOAMENTO EM SISTEMAS TELEFÔNICOS AUTOMÁTICOS

THE RELAY AUTOMATIC TELEPHONE COMPANY, LIMITED

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