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UMA LIGAÇÃO DIFFERENCIAL PARA DIRIGIR AMPLITUDES DE OSCILLAÇÕES NÃO ABAFADAS DE ALTA FREQUENCIA NO RHYTHMO DE OSCILLAÇÕES ACUSTICAS

0.1 - Acervo Histórico de patentes do INPI-18305
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25/03/1921

Part of Acervo Histórico de patentes do INPI

UMA LIGAÇÃO DIFERENCIAL PARA DIRIGIR AMPLITUDES DE OSCILAÇÕES NÃO ABAFADAS DE ALTA FREQUÊNCIA NO RITMO DE OSCILAÇÕES ACÚSTICAS

HANS VOGT; JOSEPH ENGL; JOSEPH MASSOLLE

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