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Individual
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Individual
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Priority to ES107691ApriorityCriticalpatent/ES107691A1/es
Publication of ES107691A1publicationCriticalpatent/ES107691A1/es
ES107691A1928-05-081928-05-08Bolsa formando filtro con tubos de descarga unilaterales para filtros bursiformes cerrados en todos sus lados.
ExpiredES107691A1
(es)