Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Espana SAfiledCriticalAlcatel Espana SA
Priority to ES0228646ApriorityCriticalpatent/ES228646A2/es
Publication of ES228646A2publicationCriticalpatent/ES228646A2/es
Mejoras en o relativas a cátodos de termoiónicos de la clase en que los electrones son emitidos por n material activo que es una masa fundida y comrpimida de polvo de metal refractario mezclado con material emisor termoiónicamente y la superficie emisora deseada es de área muy pequeña, caracterizadas porque dicha superficie emisora ocupa el extremo de un bloque de dicho material activo que proyecta de la cara de un bloque mayor de polvo metálico fundido.
ES0228646A1956-05-221956-05-22MEJORAS EN O RELATIVAS A CáTODOS TERMOIoNICOS
ExpiredES228646A2
(es)