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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MONTANER SOCIEDA ANONIMA
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MONTANER SOCIEDA ANONIMA
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Application filed by MONTANER SOCIEDA ANONIMAfiledCriticalMONTANER SOCIEDA ANONIMA
Priority to ES0203745ApriorityCriticalpatent/ES203745A1/en
Publication of ES203745A1publicationCriticalpatent/ES203745A1/en
New intercom system, characterized by a double circuit, which in one case is formed by the loudspeaker of the central apparatus, in series with the microphone of a secondary device and power supply, while the investment lever keeps in the position listening. (Machine-translation by Google Translate, not legally binding)
ES0203745A1952-05-281952-05-28A new intercommunicator system (Machine-translation by Google Translate, not legally binding)
ExpiredES203745A1
(en)