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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Laboratorios Aprofa S A
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Laboratorios Aprofa S A
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Application filed by Laboratorios Aprofa S AfiledCriticalLaboratorios Aprofa S A
Priority to ES0155881UpriorityCriticalpatent/ES155881U/en
Publication of ES155881UpublicationCriticalpatent/ES155881U/en
Hygienic mask, characterized essentially by the fact that it is constituted by a porous cellulosic sheet folded at its center, determining opposing halves, whose corners close to the fold line are operatively joined to form a concavity suitable for placement in the opening mask of said sheet, the retention of which is due to the consequent engagement of the closed projecting ends of an elastic strip through the hem formed by the turned edges of the selvedges of the sheet. (Machine-translation by Google Translate, not legally binding)
ES0155881U1970-02-131970-02-13Hygienic mask (Machine-translation by Google Translate, not legally binding)
PendingES155881U
(en)