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UM DISPOSITIVO PARA AUGMENTAR A DURAÇÃO, A UNIFORMIDADE E A ECONOMIA DOS TUBOS DE DESCARGA COM CATODIO CANDENTE

0.1 - Acervo Histórico de patentes do INPI-10978
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02/01/1913

Part of Acervo Histórico de patentes do INPI

UM DISPOSITIVO PARA AUMENTAR A DURAÇÃO, A UNIFORMIDADE E A ECONOMIA DOS TUBOS DE DESCARGA COM CATÓDIO CANDENTE

ROBERTO VON LIEBEN; EUGEN REISZ; SIGMUND STRAUSS

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