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Priority to ES101933UpriorityCriticalpatent/ES101933Y/en
Publication of ES101933UpublicationCriticalpatent/ES101933U/en
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Publication of ES101933YpublicationCriticalpatent/ES101933Y/en
An improved cremone characterized essentially by the fact of comprising an articulated hand inside a box along a transverse axis and ending in a cradle-like expansion that acts as a cam and provided with a nail in which a transverse axis of a square piece with end protrusions on its forehead that make stoppers in elongated windows of another square piece attached to the previous one, presenting a projection that fits into a recess of a rod to which it transmits by said means the movements of the handle sliding the rod in a single direction suitably guided in pins to the effect, this rod having lugs averaged over its entire length operatively arranged so that in a limited position of the hand are included in a few boxes preventing the opening of the window leaf while in the opposite limit position of the hand are set with respect or to the boxes mentioned, then the sheet is practicable. (Machine-translation by Google Translate, not legally binding)