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UM PROCESSO PARA FORMAÇÃO DE ARENAS DE GELO ARTIFICIAL

0.1 - Acervo Histórico de patentes do INPI-10073
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15/12/1911

Part of Acervo Histórico de patentes do INPI

UM PROCESSO PARA FORMAÇÃO DE ARENAS DE GELO ARTIFICIAL

WILHELM WERNER VON BLUMENTHAL; JULIUS HOSEMANN

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