GB157938A - An arrangement for telephone installations with several trunk offices connected in series - Google Patents

An arrangement for telephone installations with several trunk offices connected in series

Info

Publication number
GB157938A
GB157938A GB1649/21A GB164921A GB157938A GB 157938 A GB157938 A GB 157938A GB 1649/21 A GB1649/21 A GB 1649/21A GB 164921 A GB164921 A GB 164921A GB 157938 A GB157938 A GB 157938A
Authority
GB
United Kingdom
Prior art keywords
office
connection
relay
jack
circuit
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
GB1649/21A
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB157938A publication Critical patent/GB157938A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/08—Manual exchanges using connecting means other than cords

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
GB1649/21A 1916-11-18 1921-01-10 An arrangement for telephone installations with several trunk offices connected in series Expired GB157938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE157938X 1916-11-18

Publications (1)

Publication Number Publication Date
GB157938A true GB157938A (en) 1922-04-10

Family

ID=5679154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1649/21A Expired GB157938A (en) 1916-11-18 1921-01-10 An arrangement for telephone installations with several trunk offices connected in series

Country Status (2)

Country Link
DE (1) DE304966C (enExample)
GB (1) GB157938A (enExample)

Also Published As

Publication number Publication date
DE304966C (enExample)

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