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BUERG DEL CASTILLO MANUEL
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BUERG DEL CASTILLO MANUEL
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Priority to ES99102UpriorityCriticalpatent/ES99102Y/es
Publication of ES99102UpublicationCriticalpatent/ES99102U/es
Application grantedgrantedCritical
Publication of ES99102YpublicationCriticalpatent/ES99102Y/es
Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments
(AREA)
Abstract
"LIBRO-CUADERNO, CON IMPRESIÓN Y ZONAS RESERVADAS PARA ESCRITURA MÚLTIPLE", caracterizado por el hecho de que está constituido por una pluralidad de hojas de material resistente y lavable, sobre los cuales se han impreso, con tinta indeleble, ilustraciones y textos, para que puedan ser copiados en las zonas reservadas para ello en las propias hojas, empleando lápices u otros medios, que debido a las características del material constitutivo de las hojas, permiten ser borrados fácilmente, por frotación o lavado, admitiendo su ulterior y repetida utilización.
ES99102U1963-02-191963-02-19Un libro-cuaderno, con impresion y zonas reservadas para escritura multiple.
ExpiredES99102Y
(es)