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Individual
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Individual
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Priority to ES99307UpriorityCriticalpatent/ES99307Y/es
Publication of ES99307UpublicationCriticalpatent/ES99307U/es
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Publication of ES99307YpublicationCriticalpatent/ES99307Y/es
Filtro para pantallas de televisión, que se caracteriza por estar constituido por una lámina transparente, provista de una serie de líneas opacas cuya dirección forma ángulo con el de las líneas de barrido del iconoscopio del televisor a cuya pantalla se antepone.
ES99307U1963-04-271963-04-27Un filtro para pantallas de television.
ExpiredES99307Y
(es)