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Priority to ES117838UpriorityCriticalpatent/ES117838Y/en
Publication of ES117838UpublicationCriticalpatent/ES117838U/en
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Publication of ES117838YpublicationCriticalpatent/ES117838Y/en
An improved perforator-egg characterized essentially by the fact of being constituted by two bodies in the form of a glass faced by their mouths of different diameter and the lower body comprising an axial pillar finished in pointed tip on whose pillar slides a sleeve of the upper body being said displacements governed by an expansive helical spring wound on the pillar and whose end turns rest on the bottom of the lower vessel and on the mouth of the sleeve, respectively, maintaining it against a step stop of the pillar itself. (Machine-translation by Google Translate, not legally binding)
ES117838U1965-12-031965-12-03
A PERFECTED EGG DRILL.
ExpiredES117838Y
(en)