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APERFEIÇOAMENTOS EM REFLECTORES PARA SEREM EMPREGADOS NA TELEGRAPHIA E NA TELEPHONIA SEM FIOS

0.1 - Acervo Histórico de patentes do INPI-15720
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23/05/1919

Part of Acervo Histórico de patentes do INPI

APERFEIÇOAMENTOS EM REFLETORES PARA SEREM EMPREGADOS NA TELEGRAFIA E NA TELEFONIA SEM FIOS

MARCONIS WIRELESS TELEGRAPH COMPANY, LIMITED

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