Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Priority to ES0053234UpriorityCriticalpatent/ES53234U/es
Publication of ES53234UpublicationCriticalpatent/ES53234U/es
Cubierta para libro, cuadernos, álbumes, etc. caracterizada por componerse de una parte central que constituye el lomo y dos trozos papel u otro material plastificado que corresponden a las tapas los cuales se sueldan por los bordes por medio de corriente de alta frecuencia.
ES0053234U1956-03-151956-03-15Cubierta para libros, cuadernos, álbumes, etc.
PendingES53234U
(es)