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Economizador de papel para prescindir de sobres en la correspondencia, caracterizado por que está constituido por hoja de papel de dimensiones apropiadas, que se dobla a la mitad y que paralela a los bordes lleva una línea de perforaciones y que determina con el mismo borde de la hoja una banda de papel que se puede engomar por una de las caras de la hoja de papel.
ES0217293U1975-12-101975-12-10Economizador de papel para prescindir de sobres en la correspondencia
PendingES217293U
(es)