ES272103A1 - Sistema de intercomunicación en alta voz por cable o radio - Google Patents

Sistema de intercomunicación en alta voz por cable o radio

Info

Publication number
ES272103A1
ES272103A1 ES272103A ES272103A ES272103A1 ES 272103 A1 ES272103 A1 ES 272103A1 ES 272103 A ES272103 A ES 272103A ES 272103 A ES272103 A ES 272103A ES 272103 A1 ES272103 A1 ES 272103A1
Authority
ES
Spain
Prior art keywords
sound
translation
radio
cable
machine
Prior art date
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.)
Expired
Application number
ES272103A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to ES272103A priority Critical patent/ES272103A1/es
Publication of ES272103A1 publication Critical patent/ES272103A1/es
Expired legal-status Critical Current

Links

Landscapes

  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
ES272103A 1961-11-17 1961-11-17 Sistema de intercomunicación en alta voz por cable o radio Expired ES272103A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES272103A ES272103A1 (es) 1961-11-17 1961-11-17 Sistema de intercomunicación en alta voz por cable o radio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES272103A ES272103A1 (es) 1961-11-17 1961-11-17 Sistema de intercomunicación en alta voz por cable o radio

Publications (1)

Publication Number Publication Date
ES272103A1 true ES272103A1 (es) 1962-03-16

Family

ID=65593387

Family Applications (1)

Application Number Title Priority Date Filing Date
ES272103A Expired ES272103A1 (es) 1961-11-17 1961-11-17 Sistema de intercomunicación en alta voz por cable o radio

Country Status (1)

Country Link
ES (1) ES272103A1 (es)

Similar Documents

Publication Publication Date Title
BE759888A (fr) Transducteur electro-acoustique, notamment microphone pour installations telephoniques
ES272103A1 (es) Sistema de intercomunicación en alta voz por cable o radio
US2545477A (en) Two-way loud-speaker intercommunication system
FR1230574A (fr) Serre-tête téléphonique léger notamment pour combiné serre-tête téléphoniquemicrophone
SE310192B (es)
JPS5330803A (en) Voice communication system
GB862262A (en) Improvements connected with loudspeaking intercommunication systems
ES261154A1 (es) Sistema de circuito telefënico de llamada de conferencia
JPS51121238A (en) An audio-signal amplifying system
GB970986A (es)
GB779156A (en) A remote control device for use with apparatus incorporating a loud speaker
GB936756A (en) Improvements in or relating to loudspeaking telephone systems
GB984889A (en) Improvements in or relating to electro-acoustic transducers
ES221769A1 (es) Perfeccionamientos en micrófonos, en particular para instalaciones duplex con altavoces y micrófono
GB869895A (en) Improvements relating to communication apparatus
JPS52116004A (en) Voice call system
ES279732A1 (es) Un sistema de comunicaciones vocales interiores
CA619985A (en) Sound control for telephone ringer
ES120102U (es) Amplificador telefónico
GB873030A (en) Improvements in or relating to intercommunication telephone systems
ES364531A1 (es) Sistema de telefonia interior.
AU3900563A (en) Telephone transducer operable as microphone and tone sounder
ES248767A1 (es) Un amplificador de transistores adaptable a los combinados telefënicos de auricular y micrëfono
ES353727A1 (es) Sistema de telefonia interior.
ES170142U (es) Altavoz pasivo