A procedure to obtain a false sky formed with panels (Machine-translation by Google Translate, not legally binding)
ES294247A1
A improvement in the devices for covering walls or skies (Machine-translation by Google Translate, not legally binding)
ES294249A1
A perfection in the panels formed of slim elements in the form of a channel for wall and sky wall coverings (Machine-translation by Google Translate, not legally binding)
ES294248A1
A perfection in the soundproof panels (Machine-translation by Google Translate, not legally binding)