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Priority to ES1967128687UpriorityCriticalpatent/ES128687Y/en
Publication of ES128687UpublicationCriticalpatent/ES128687U/en
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Publication of ES128687YpublicationCriticalpatent/ES128687Y/en
A folding litmus, characterized by being constituted by a sheet of material of sufficient rigidity and strength, in which by means of lines of folding and trimming of its edges, a triangular isosceles central area is achieved in whose base it has a wide flap capable of fall over the previous one or extend in the opposite direction, forming the seat of the litmus while the triangular area in an inclined position constitutes the backrest, for which there are on their sides the same lapel paths susceptible to fall on it or to be placed with their planes perpendicular to it constituting lateral support in its position of employment. (Machine-translation by Google Translate, not legally binding)
ES1967128687U1967-03-281967-03-28
A FOLDING TOMASOL.
ExpiredES128687Y
(en)