GB229765A - Improvements in or relating to automatic or semi-automatic telephone systems - Google Patents

Improvements in or relating to automatic or semi-automatic telephone systems

Info

Publication number
GB229765A
GB229765A GB3022523A GB3022523A GB229765A GB 229765 A GB229765 A GB 229765A GB 3022523 A GB3022523 A GB 3022523A GB 3022523 A GB3022523 A GB 3022523A GB 229765 A GB229765 A GB 229765A
Authority
GB
United Kingdom
Prior art keywords
relay
circuit
digits
exchange
over
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
GB3022523A
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.)
Automatic Telephone Manufacturing Co Ltd
Original Assignee
Automatic Telephone Manufacturing 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
Priority to FR606262D priority Critical patent/FR606262A/fr
Application filed by Automatic Telephone Manufacturing Co Ltd filed Critical Automatic Telephone Manufacturing Co Ltd
Priority to GB3022523A priority patent/GB229765A/en
Priority to DEA43627D priority patent/DE445263C/de
Publication of GB229765A publication Critical patent/GB229765A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
GB3022523A 1923-11-30 1923-11-30 Improvements in or relating to automatic or semi-automatic telephone systems Expired GB229765A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR606262D FR606262A (enrdf_load_stackoverflow) 1923-11-30
GB3022523A GB229765A (en) 1923-11-30 1923-11-30 Improvements in or relating to automatic or semi-automatic telephone systems
DEA43627D DE445263C (de) 1923-11-30 1924-11-30 Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb und Stromstossspeichern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3022523A GB229765A (en) 1923-11-30 1923-11-30 Improvements in or relating to automatic or semi-automatic telephone systems

Publications (1)

Publication Number Publication Date
GB229765A true GB229765A (en) 1925-03-02

Family

ID=10304260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3022523A Expired GB229765A (en) 1923-11-30 1923-11-30 Improvements in or relating to automatic or semi-automatic telephone systems

Country Status (3)

Country Link
DE (1) DE445263C (enrdf_load_stackoverflow)
FR (1) FR606262A (enrdf_load_stackoverflow)
GB (1) GB229765A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE445263C (de) 1927-06-07
FR606262A (enrdf_load_stackoverflow) 1926-06-10

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