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Individual
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Individual
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Priority to ES100393UpriorityCriticalpatent/ES100393U/en
Publication of ES100393UpublicationCriticalpatent/ES100393U/en
Respiratory Apparatuses And Protective Means
(AREA)
Abstract
Improved protective mask, essentially characterized by comprising a piece of direct application on the face of the user covering the mouth and nose and a framing of superposition and retention pressed on the previous one, between whose elements a sheet of filtering material is removably retained. (Machine-translation by Google Translate, not legally binding)
ES100393U1963-07-031963-07-03Improved protective mask (Machine-translation by Google Translate, not legally binding)
PendingES100393U
(en)