FR80805E - - Google Patents

Info

Publication number
FR80805E
FR80805E FR872145A FR872145A FR80805E FR 80805 E FR80805 E FR 80805E FR 872145 A FR872145 A FR 872145A FR 872145 A FR872145 A FR 872145A FR 80805 E FR80805 E FR 80805E
Authority
FR
France
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
FR872145A
Other languages
French (fr)
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
Priority claimed from AT102860A external-priority patent/AT233634B/en
Priority claimed from AT674460A external-priority patent/AT221603B/en
Application filed filed Critical
Application granted granted Critical
Publication of FR80805E publication Critical patent/FR80805E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/04—Arrangements for interconnection not involving centralised switching involving a separate line for each pair of parties
    • 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
    • H04M19/04—Current 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
FR872145A 1960-02-10 1961-09-01 Expired FR80805E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT102860A AT233634B (en) 1960-02-10 1960-02-10 Circuit arrangement for an intercom
AT674460A AT221603B (en) 1960-09-02 1960-09-02 Circuit arrangement for a transmission system for sound events

Publications (1)

Publication Number Publication Date
FR80805E true FR80805E (en) 1963-03-13

Family

ID=25594638

Family Applications (1)

Application Number Title Priority Date Filing Date
FR872145A Expired FR80805E (en) 1960-02-10 1961-09-01

Country Status (1)

Country Link
FR (1) FR80805E (en)

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