AT233634B - Circuit arrangement for an intercom - Google Patents

Circuit arrangement for an intercom

Info

Publication number
AT233634B
AT233634B AT102860A AT102860A AT233634B AT 233634 B AT233634 B AT 233634B AT 102860 A AT102860 A AT 102860A AT 102860 A AT102860 A AT 102860A AT 233634 B AT233634 B AT 233634B
Authority
AT
Austria
Prior art keywords
intercom
circuit arrangement
arrangement
circuit
Prior art date
Application number
AT102860A
Other languages
German (de)
Original Assignee
Standard Telephon & Telegraph
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 Standard Telephon & Telegraph filed Critical Standard Telephon & Telegraph
Priority to AT102860A priority Critical patent/AT233634B/en
Priority to CH134561A priority patent/CH388390A/en
Priority to DE1961J0019384 priority patent/DE1164503B/en
Priority to FR852051A priority patent/FR1288163A/fr
Priority to BE600001A priority patent/BE600001A/en
Priority to FR872145A priority patent/FR80805E/fr
Priority to FR891904A priority patent/FR81431E/fr
Priority to FR893614A priority patent/FR82257E/fr
Application granted granted Critical
Publication of AT233634B publication Critical patent/AT233634B/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/02Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/001Two-way communication systems between a limited number of parties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/04Arrangements for interconnection not involving centralised switching involving a separate line for each pair of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
AT102860A 1960-02-10 1960-02-10 Circuit arrangement for an intercom AT233634B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT102860A AT233634B (en) 1960-02-10 1960-02-10 Circuit arrangement for an intercom
CH134561A CH388390A (en) 1960-02-10 1961-02-06 Circuit arrangement for an intercom
DE1961J0019384 DE1164503B (en) 1960-02-10 1961-02-07 Circuit arrangement for an intercom.
FR852051A FR1288163A (en) 1960-02-10 1961-02-08
BE600001A BE600001A (en) 1960-02-10 1961-02-09 Improvements to inter-communication systems
FR872145A FR80805E (en) 1960-02-10 1961-09-01
FR891904A FR81431E (en) 1960-02-10 1962-03-22
FR893614A FR82257E (en) 1960-02-10 1962-04-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT102860A AT233634B (en) 1960-02-10 1960-02-10 Circuit arrangement for an intercom

Publications (1)

Publication Number Publication Date
AT233634B true AT233634B (en) 1964-05-25

Family

ID=3505113

Family Applications (1)

Application Number Title Priority Date Filing Date
AT102860A AT233634B (en) 1960-02-10 1960-02-10 Circuit arrangement for an intercom

Country Status (5)

Country Link
AT (1) AT233634B (en)
BE (1) BE600001A (en)
CH (1) CH388390A (en)
DE (1) DE1164503B (en)
FR (1) FR1288163A (en)

Also Published As

Publication number Publication date
BE600001A (en) 1961-05-29
FR1288163A (en) 1962-02-12
DE1164503B (en) 1964-03-05
CH388390A (en) 1965-02-28

Similar Documents

Publication Publication Date Title
DK117157B (en) Electrical switchgear.
CH406431A (en) Solid state circuit
CH369816A (en) Circuit breaker
FR1288091A (en) Circuit breakers
FR1280506A (en) Superconducting circuits
CH390348A (en) Circuit breaker
AT233634B (en) Circuit arrangement for an intercom
FR1296221A (en) Logic circuit
AT246256B (en) Latched circuit breaker
CH395238A (en) Circuit breaker
CH388448A (en) Electrical tester
FR1286229A (en) Magnetic circuit
FR1268376A (en) Closed circuit transporter
FR1298654A (en) Circuit breakers
AT225975B (en) Integration facility
FR1309014A (en) Electric circuits
AT232072B (en) Intercom
BE608819A (en) Electric circuits.
FR1271155A (en) Contactor
FR1288066A (en) Superconducting circuits
FI35924A (en) Sätt att förbättra färgmottagligheten hos fibrer
AT218080B (en) Subscriber circuit for intercom systems
FI32169A (en) Sätt att framställa xantenderivat
FI34580A (en) Sätt att framställa alpha-substituerade isonikotintioamider
FI37194A (en) Sät attföra elektrisk bågsvetsning