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APERFEIÇOAMENTOS EM BUCINS DE VEDAÇÃO PARA CORPOS ROTATIVOS

0.1 - Acervo Histórico de patentes do INPI-16789
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12/04/1920

Part of Acervo Histórico de patentes do INPI

APERFEIÇOAMENTOS EM BUCINS DE VEDAÇÃO PARA CORPOS ROTATIVOS

CHARLES ALGERNON PARSONS

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