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VICENT CARBONELL RICARDO
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VICENT CARBONELL RICARDO
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Application filed by VICENT CARBONELL RICARDOfiledCriticalVICENT CARBONELL RICARDO
Priority to ES0264997ApriorityCriticalpatent/ES264997A1/es
Publication of ES264997A1publicationCriticalpatent/ES264997A1/es
Procedimiento de impresión litográfica de dibujos invisibles, caracterizado por realizar los dibujos sobre película de acetato-plástico y pasarse esto a plancha de zinc sensibilizada con goma o cola de pescado bicromatadas.
ES0264997A1961-02-181961-02-18Procedimiento de impresiën litografica de dibujos invisibles
ExpiredES264997A1
(es)