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Priority to ES221687ApriorityCriticalpatent/ES221687A3/en
Publication of ES221687A3publicationCriticalpatent/ES221687A3/en
Some improvements in the coatings of the carbon papers, essentially characterized by coating the back of the carbon paper, that is, the non-transferable face, with a mixture in which a metallic soap predominates, to which a drying agent of similar constitution to soap is added. Metallic, also carrying in the mixture pigments, dyes, or other similar material, finely divided. (Machine-translation by Google Translate, not legally binding)
ES221687A1955-04-231955-04-23Some improvements in the carbon paper coatings (Machine-translation by Google Translate, not legally binding)
ExpiredES221687A3
(en)
A procedure to obtain fosforescent painting flexible and insoluble in the water for its application in tissues (Machine-translation by Google Translate, not legally binding)