ES264997A1 - Procedure of lithographical printing of invisible drawings (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure of lithographical printing of invisible drawings (Machine-translation by Google Translate, not legally binding)
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VICENT CARBONELL RICARDO
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VICENT CARBONELL RICARDO
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Priority to ES0264997ApriorityCriticalpatent/ES264997A1/en
Publication of ES264997A1publicationCriticalpatent/ES264997A1/en
Lithographic printing process of invisible drawings, characterized by making the drawings on acetate-plastic film and passing this to sensitized zinc plate with gum or bichromated fishtail. (Machine-translation by Google Translate, not legally binding)
ES0264997A1961-02-181961-02-18Procedure of lithographical printing of invisible drawings (Machine-translation by Google Translate, not legally binding)
ExpiredES264997A1
(en)