ES189455A3 - Un procedimiento de fabricación de papel para preparación de roturas en documentos, planos, libros y otros objetos semejantes
- Google Patents
Un procedimiento de fabricación de papel para preparación de roturas en documentos, planos, libros y otros objetos semejantes
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Ezquerra Valdazo Isaac
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Ezquerra Valdazo Isaac
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Priority to ES189455ApriorityCriticalpatent/ES189455A3/es
Publication of ES189455A3publicationCriticalpatent/ES189455A3/es
ES189455A1949-08-171949-08-17Un procedimiento de fabricación de papel para preparación de roturas en documentos, planos, libros y otros objetos semejantes
ExpiredES189455A3
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