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Ind Navarra Del Aluminio SA In
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Ind Navarra Del Aluminio SA In
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Application filed by Ind Navarra Del Aluminio SA InfiledCriticalInd Navarra Del Aluminio SA In
Priority to ES0297570ApriorityCriticalpatent/ES297570A3/en
Publication of ES297570A3publicationCriticalpatent/ES297570A3/en
Improvements in the tension springs of guillotine windows, characterized in that a spiral spring is provided surrounding a cylindrical body, with one of its ends fixed thereto, and the opposite to a general envelope of both, said casing being provided with elements of fastening it to the window frame at one of its ends. (Machine-translation by Google Translate, not legally binding)
ES0297570A1964-03-121964-03-12Improvements in guillotine window tensioning furniture. (Machine-translation by Google Translate, not legally binding)
ExpiredES297570A3
(en)