DE94790C - - Google Patents

Info

Publication number
DE94790C
DE94790C DENDAT94790D DE94790DA DE94790C DE 94790 C DE94790 C DE 94790C DE NDAT94790 D DENDAT94790 D DE NDAT94790D DE 94790D A DE94790D A DE 94790DA DE 94790 C DE94790 C DE 94790C
Authority
DE
Germany
Prior art keywords
circuit
stations
station
call
microphone units
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.)
Active
Application number
DENDAT94790D
Other languages
German (de)
English (en)
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.)
Publication of DE94790C publication Critical patent/DE94790C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/68—Circuit arrangements for preventing eavesdropping
    • H04M1/70—Lock-out or secrecy arrangements in party-line systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
DENDAT94790D 1898-02-23 Active DE94790C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102496T 1898-02-23

Publications (1)

Publication Number Publication Date
DE94790C true DE94790C (enrdf_load_html_response)

Family

ID=5649362

Family Applications (2)

Application Number Title Priority Date Filing Date
DENDAT94790D Active DE94790C (enrdf_load_html_response) 1898-02-23
DE1898102496D Expired - Lifetime DE102496C (enrdf_load_html_response) 1898-02-23 1898-02-23

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1898102496D Expired - Lifetime DE102496C (enrdf_load_html_response) 1898-02-23 1898-02-23

Country Status (2)

Country Link
AT (1) AT670B (enrdf_load_html_response)
DE (2) DE102496C (enrdf_load_html_response)

Also Published As

Publication number Publication date
DE102496C (enrdf_load_html_response)
AT670B (de) 1899-12-11

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