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.)
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Nokia Spain SA
Original Assignee
Alcatel Espana SA
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Filing date
Publication date
Priority claimed from US607982Aexternal-prioritypatent/US2524765A/en
Application filed by Alcatel Espana SAfiledCriticalAlcatel Espana SA
Publication of ES175447A1publicationCriticalpatent/ES175447A1/en
Sistema de radiofaro que comprende un emisor productor de diagrama orientado; el medio de hacer que dicho radiofaro funcione con frecuencia portadora; inferior a 200 kiloperíodos por segundo; y el medio de producir una variación de señal de dicha frecuencia portadora que produzca laterales esenciales limitadas a una gama inferior a + - 80 periodos por segundo.Radio beacon system comprising an oriented pattern producing emitter; the means of making said radio beacon operate with carrier frequency; less than 200 kiloperiods per second; and the means of producing a signal variation of said carrier frequency that produces essential sides limited to a range of less than + - 80 periods per second.
ES0175447A1945-07-311946-10-24
IMPROVEMENTS IN RADIO LAMP SYSTEMS
ExpiredES175447A1
(en)