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Individual
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Individual
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Priority to ES0021680UpriorityCriticalpatent/ES21680Y/es
Publication of ES21680UpublicationCriticalpatent/ES21680U/es
Application grantedgrantedCritical
Publication of ES21680YpublicationCriticalpatent/ES21680Y/es
LIBRO PERFECCIONADO caracterizado por su nueva y original manera de ordenar las páginas de cualquier clase de libros, revistas y folletos en general impresos de tal suerte que abierto este por cualquier parte una de sus páginas aparecerá con la escritura invertida respecto a su opuesta y ello por las altas razones que en la "Memoria descriptiva" que antecede se dejan claramente expuestas.