GB440291A - Improvements in and relating to telegraph exchange systems - Google Patents

Improvements in and relating to telegraph exchange systems

Info

Publication number
GB440291A
GB440291A GB29620/34A GB2962034A GB440291A GB 440291 A GB440291 A GB 440291A GB 29620/34 A GB29620/34 A GB 29620/34A GB 2962034 A GB2962034 A GB 2962034A GB 440291 A GB440291 A GB 440291A
Authority
GB
United Kingdom
Prior art keywords
relay
selector
group
repeater
contact
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
GB29620/34A
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 GB440291A publication Critical patent/GB440291A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
GB29620/34A 1933-10-16 1934-10-16 Improvements in and relating to telegraph exchange systems Expired GB440291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE440291X 1933-10-16

Publications (1)

Publication Number Publication Date
GB440291A true GB440291A (en) 1935-12-24

Family

ID=6509131

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29620/34A Expired GB440291A (en) 1933-10-16 1934-10-16 Improvements in and relating to telegraph exchange systems

Country Status (4)

Country Link
BE (1) BE405702A (enrdf_load_stackoverflow)
FR (1) FR779819A (enrdf_load_stackoverflow)
GB (1) GB440291A (enrdf_load_stackoverflow)
NL (1) NL40487C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113859300A (zh) * 2021-10-29 2021-12-31 中铁武汉电气化局集团第一工程有限公司 一种四线制二线制方向电路结合过渡控制系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113859300A (zh) * 2021-10-29 2021-12-31 中铁武汉电气化局集团第一工程有限公司 一种四线制二线制方向电路结合过渡控制系统
CN113859300B (zh) * 2021-10-29 2024-04-30 中铁武汉电气化局集团第一工程有限公司 一种四线制二线制方向电路结合过渡控制系统

Also Published As

Publication number Publication date
NL40487C (enrdf_load_stackoverflow) 1937-04-15
FR779819A (fr) 1935-04-13
BE405702A (enrdf_load_stackoverflow) 1934-11-30

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