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UM NOVO APPARELHO DESTINADO A SER COLLOCADO EXTERIORMENTE NO BOCCAL DO APPARELHO TELEPHONICO, COM O FIM DE EVITAR QUE SE ADQUIRA MOLESTIA CONTAGIOSA, DENOMINADO PROTECTOR HYGIENICO

0.1 - Acervo Histórico de patentes do INPI-14811
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27/02/1918

Part of Acervo Histórico de patentes do INPI

UM NOVO APARELHO DESTINADO A SER COLOCADO EXTERIORMENTE NO BOCAL DO APARELHO TELEFÔNICO, COM O FIM DE EVITAR QUE SE ADQUIRA MOLÉSTIA CONTAGIOSA, DENOMINADO PROTETOR HIGIÊNICO

HUGO GUIMARÃES DOS SANTOS

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