ES400681A1 - Call circuit for telephone or interfone appliances. (Machine-translation by Google Translate, not legally binding) - Google Patents

Call circuit for telephone or interfone appliances. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES400681A1
ES400681A1 ES400681A ES400681A ES400681A1 ES 400681 A1 ES400681 A1 ES 400681A1 ES 400681 A ES400681 A ES 400681A ES 400681 A ES400681 A ES 400681A ES 400681 A1 ES400681 A1 ES 400681A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
telephone
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
ES400681A
Other languages
Spanish (es)
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.)
Bassani SpA
Original Assignee
Bassani SpA
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 Bassani SpA filed Critical Bassani SpA
Publication of ES400681A1 publication Critical patent/ES400681A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

Call circuit for telephone devices or intercoms; characterized in that it provides an oscillator that generates an audio signal that can be connected in series with the loudspeaker of the device that is called by means of a respective button so that it sends an audio signal to said loudspeaker. (Machine-translation by Google Translate, not legally binding)
ES400681A 1971-04-13 1972-03-11 Call circuit for telephone or interfone appliances. (Machine-translation by Google Translate, not legally binding) Expired ES400681A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2306971 1971-04-13

Publications (1)

Publication Number Publication Date
ES400681A1 true ES400681A1 (en) 1975-01-16

Family

ID=11203445

Family Applications (1)

Application Number Title Priority Date Filing Date
ES400681A Expired ES400681A1 (en) 1971-04-13 1972-03-11 Call circuit for telephone or interfone appliances. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
ES (1) ES400681A1 (en)
FR (1) FR2139241A5 (en)

Also Published As

Publication number Publication date
FR2139241A5 (en) 1973-01-05

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