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APERFEIÇOAMENTOS NO APPARELHO TRANSMISSOR TELEPHONICO

0.1 - Acervo Histórico de patentes do INPI-15802
Item
20/06/1919

Part of Acervo Histórico de patentes do INPI

APERFEIÇOAMENTOS NO APARELHO TRANSMISSOR TELEFÔNICO

JOHAN SKINDERVIKEN

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