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Priority to ES86948UpriorityCriticalpatent/ES86948Y/en
Publication of ES86948UpublicationCriticalpatent/ES86948U/en
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Publication of ES86948YpublicationCriticalpatent/ES86948Y/en
Decorative and sound-absorbing plates, consisting essentially of a sheet provided with rows of slits for the passage of sound, with the edges turned upwards, provided with laterally projecting ears for fixing the plate and recesses for the passage of the ears of adjacent pegs, the ears and notches of facing sides of adjacent plates being alternated within each plate so that the ears of one of them are inserted into the recesses of the other. (Machine-translation by Google Translate, not legally binding)
ES86948U1961-04-201961-04-20
Decorative and sound-absorbing plates
ExpiredES86948Y
(en)
Improvements introduced in the manufacture of construction elements that include perforations (Machine-translation by Google Translate, not legally binding)