GB191126830A - Improved Circuit Systems for Operating between Manual and Automatic Telephone Exchanges. - Google Patents

Improved Circuit Systems for Operating between Manual and Automatic Telephone Exchanges.

Info

Publication number
GB191126830A
GB191126830A GB191126830DA GB191126830A GB 191126830 A GB191126830 A GB 191126830A GB 191126830D A GB191126830D A GB 191126830DA GB 191126830 A GB191126830 A GB 191126830A
Authority
GB
United Kingdom
Prior art keywords
line
junction
relay
wiper
disengaged
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
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 Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
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 Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Application granted granted Critical
Publication of GB191126830A publication Critical patent/GB191126830A/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)
  • Structure Of Telephone Exchanges (AREA)
GB191126830D 1911-11-30 1911-11-30 Improved Circuit Systems for Operating between Manual and Automatic Telephone Exchanges. Expired GB191126830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191126830T 1911-11-30

Publications (1)

Publication Number Publication Date
GB191126830A true GB191126830A (en) 1912-03-07

Family

ID=32639802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191126830D Expired GB191126830A (en) 1911-11-30 1911-11-30 Improved Circuit Systems for Operating between Manual and Automatic Telephone Exchanges.

Country Status (2)

Country Link
GB (1) GB191126830A (lt)
NL (1) NL2709C (lt)

Also Published As

Publication number Publication date
NL2709C (lt)

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