Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES0005565UpriorityCriticalpatent/ES5565U/en
Publication of ES5565UpublicationCriticalpatent/ES5565U/en
A new type of document card or identity card essentially characterized by being formed of a paper previously prepared based on a revealing substance for example mercuric bisulphide and another sensitizer such as silver nitrate in whose paper by means of clichº and analogous drawings in sheets or transparent papers have been given an impression of the image of the subject and how many epigraphs and data are suitable for the identification of the same whose role has then received adequate treatment so that these impressions remain fixed and are durable while avoiding their falsification by appearing on the surface of the paper the chemical reaction of the combined substances when it comes to altering or suppressing the images or epigraphs of the document. (Machine-translation by Google Translate, not legally binding)
ES0005565U1939-08-301939-08-30An unforgeable type of card (Machine-translation by Google Translate, not legally binding)
PendingES5565U
(en)