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Braher S A
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Braher S A
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Priority to ES1967132981UpriorityCriticalpatent/ES132981Y/es
Publication of ES132981UpublicationCriticalpatent/ES132981U/es
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Publication of ES132981YpublicationCriticalpatent/ES132981Y/es
Cielo-raso artificial perfeccionado, caracterizado esencialmente, por estar constituido por placas obtenidas de materia plástica las, cuales presentan al menos dos bordes en oposición dotados de un doblez que se constituye en guía para su deslizamiento por las viguetas de soporte, estando obtenidas dichas placas en combinación con perfiles laterales huecos que se anulan a las paredes constituyéndose en soportes para los bordes de las placas extremas que forman el cielo-raso.
Fremgangsmåde til sulfatering i to trin af alkoholer eller etheralkoholer med mindst 8, fortrinsvis mindst 12, carbonatomer i alkylkæden ved hjælp af svovltrioxid.