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SATRAMETRAL SOC ANENIMA
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SATRAMETRAL SOC ANENIMA
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Application filed by SATRAMETRAL SOC ANENIMAfiledCriticalSATRAMETRAL SOC ANENIMA
Publication of ES252310A1publicationCriticalpatent/ES252310A1/en
Perfeccionamientos in metallic boxes provided with circular cover, and of a ring of hermeticidad and inviolabilidad of flexible material, fixed in watertight form on the one hand to the body of the box and, on the other, to the cover, characterized by the fact that the ring presents two flanges fitted and retained one in a circular body and the other in a circular lace of the lid, and the fact that this ring also has, in its part located between these two ridges, two circular grooves that determine between an annular strip of torn off, this band being integral with a traction member intended to be grasped and stretched to produce without the need of any tool the tearing of said strip by tearing the ring along the two grooves. (Machine-translation by Google Translate, not legally binding)
ES0252310A1958-09-151959-09-11Perfections in metal boxes provided with circular cover (Machine-translation by Google Translate, not legally binding)
ExpiredES252310A1
(en)