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Individual
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Individual
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Priority to ES0004995UpriorityCriticalpatent/ES4995U/es
Publication of ES4995UpublicationCriticalpatent/ES4995U/es
Un nuevo bloc de cartas sobres, caracterizado por el hecho de que se compone de un número variable de hojas que forman simultáneamente la carta y el sobre.
ES0004995U1937-09-181937-09-18UN nuevo bloc de cartas sobre
PendingES4995U
(es)