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ES447200A3
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A de lucernario device. (Machine-translation by Google Translate, not legally binding)
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ES446959A3
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Bardal formed by profiled elements. (Machine-translation by Google Translate, not legally binding)
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ES446765A3
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Automatic opening device for an output opening. (Machine-translation by Google Translate, not legally binding)
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ES446741A3
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Improvements introduced in the construction of alveolar metal soils. (Machine-translation by Google Translate, not legally binding)
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ES446720A3
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An automatic opening device for a smoke output opening in case of fire. (Machine-translation by Google Translate, not legally binding)
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DE2603921A1
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SELF-SUPPORTING PROTECTIVE WALL ELEMENTS WITH IMPROVED TRANSPORT DENSITY
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DE2265099A1
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DEVICE FOR THE AUTOMATIC OPENING OF A SMOKE EXHAUST IN THE EVENT OF A FIRE
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