GB531205A - Improvements in or relating to telecommunication exchange systems - Google Patents

Improvements in or relating to telecommunication exchange systems

Info

Publication number
GB531205A
GB531205A GB19115/39A GB1911539A GB531205A GB 531205 A GB531205 A GB 531205A GB 19115/39 A GB19115/39 A GB 19115/39A GB 1911539 A GB1911539 A GB 1911539A GB 531205 A GB531205 A GB 531205A
Authority
GB
United Kingdom
Prior art keywords
over
relay
register
finder
impulses
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
GB19115/39A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB531205A publication Critical patent/GB531205A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Relay Circuits (AREA)
GB19115/39A 1939-06-30 1939-06-30 Improvements in or relating to telecommunication exchange systems Expired GB531205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB244473X 1939-06-30

Publications (1)

Publication Number Publication Date
GB531205A true GB531205A (en) 1940-12-31

Family

ID=10211845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19115/39A Expired GB531205A (en) 1939-06-30 1939-06-30 Improvements in or relating to telecommunication exchange systems

Country Status (4)

Country Link
BE (1) BE440021A (no)
CH (1) CH244473A (no)
FR (1) FR867232A (no)
GB (1) GB531205A (no)

Also Published As

Publication number Publication date
FR867232A (fr) 1941-10-07
BE440021A (no)
CH244473A (de) 1946-09-15

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