GB759689A - Improvements in and relating to automatic exchanges - Google Patents

Improvements in and relating to automatic exchanges

Info

Publication number
GB759689A
GB759689A GB2870550A GB2870550A GB759689A GB 759689 A GB759689 A GB 759689A GB 2870550 A GB2870550 A GB 2870550A GB 2870550 A GB2870550 A GB 2870550A GB 759689 A GB759689 A GB 759689A
Authority
GB
United Kingdom
Prior art keywords
calling
pulse
subscriber
unit
speech
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
GB2870550A
Other languages
English (en)
Inventor
Maurice Moiese Levy
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 NL7708838.A priority Critical patent/NL165523B/xx
Priority to NL88818D priority patent/NL88818C/xx
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB2870550A priority patent/GB759689A/en
Priority to FR1048948D priority patent/FR1048948A/fr
Priority to US257992A priority patent/US2736773A/en
Publication of GB759689A publication Critical patent/GB759689A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
GB2870550A 1950-11-23 1950-11-23 Improvements in and relating to automatic exchanges Expired GB759689A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL7708838.A NL165523B (nl) 1950-11-23 Inrichting voor het overbrengen van materiaal van de bodem van bijvoorbeeld een zeebekken.
NL88818D NL88818C (fr) 1950-11-23
GB2870550A GB759689A (en) 1950-11-23 1950-11-23 Improvements in and relating to automatic exchanges
FR1048948D FR1048948A (fr) 1950-11-23 1951-11-23 Central automatique téléphonique
US257992A US2736773A (en) 1950-11-23 1951-11-24 Automatic exchanges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2870550A GB759689A (en) 1950-11-23 1950-11-23 Improvements in and relating to automatic exchanges

Publications (1)

Publication Number Publication Date
GB759689A true GB759689A (en) 1956-10-24

Family

ID=10279784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2870550A Expired GB759689A (en) 1950-11-23 1950-11-23 Improvements in and relating to automatic exchanges

Country Status (3)

Country Link
FR (1) FR1048948A (fr)
GB (1) GB759689A (fr)
NL (2) NL165523B (fr)

Also Published As

Publication number Publication date
NL88818C (fr)
FR1048948A (fr) 1953-12-24
NL165523B (nl)

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