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Priority to ES121723UpriorityCriticalpatent/ES121723Y/en
Publication of ES121723UpublicationCriticalpatent/ES121723U/en
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Publication of ES121723YpublicationCriticalpatent/ES121723Y/en
Frame for glasses characterized by the fact that in the upper part of the hoops for retention of the lenses has a longitudinal rib emerging from the outer side of the frame of the glasses in order to intercept the light rays of zenith origin up to a certain angular value to avoid its incidence on the lenses and the formation of parasitic effects of refraction of the light in opposition to the normal vision through those lenses whose rib runs uninterruptedly along the entire front of the frame . (Machine-translation by Google Translate, not legally binding)
ES121723U1965-06-211965-06-21
FRAME FOR GLASSES.
ExpiredES121723Y
(en)
Improvements in the construction of photocell detectors to control the frame in las canillas (Machine-translation by Google Translate, not legally binding)
An optical apparatus for the recognition and study of parts of translucent and transparent materials (Machine-translation by Google Translate, not legally binding)