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UMA LAMPADA ELECTRICA, DE GAZ, COM DESCARGA INCANDESCENTE

0.1 - Acervo Histórico de patentes do INPI-16346
Item
28/11/1919

Part of Acervo Histórico de patentes do INPI

UMA LÂMPADA ELÉTRICA, DE GÁS, COM DESCARGA INCANDESCENTE

OTTO SCHALLER; FRITZ SCHOETER

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