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Priority to ES0001709UpriorityCriticalpatent/ES1709Y/es
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Photosensitive Polymer And Photoresist Processing
(AREA)
Abstract
Un aparato para imprimir o copiar toda clase de dibujos y fotograbados, que se caracteriza por que consta de un marco de madera con fondo transparente y una tela opaca circundante para producir la obscuridad.
ES0001709U1933-03-151933-03-15Imprimir o copiar toda clase de dibujos o fotograbados.
ExpiredES1709Y
(es)