GB520681A - Improvements in or relating to tariff recording equipment for telecommunication exchange systems - Google Patents

Improvements in or relating to tariff recording equipment for telecommunication exchange systems

Info

Publication number
GB520681A
GB520681A GB2529038A GB2529038A GB520681A GB 520681 A GB520681 A GB 520681A GB 2529038 A GB2529038 A GB 2529038A GB 2529038 A GB2529038 A GB 2529038A GB 520681 A GB520681 A GB 520681A
Authority
GB
United Kingdom
Prior art keywords
relay
over
calls
circuit
pulls
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
GB2529038A
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
Priority to GB2529038A priority Critical patent/GB520681A/en
Priority to CH236320D priority patent/CH236320A/fr
Priority to FR858437D priority patent/FR858437A/fr
Priority to NL94905A priority patent/NL52642C/xx
Publication of GB520681A publication Critical patent/GB520681A/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
    • H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB2529038A 1938-08-29 1938-08-29 Improvements in or relating to tariff recording equipment for telecommunication exchange systems Expired GB520681A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB2529038A GB520681A (en) 1938-08-29 1938-08-29 Improvements in or relating to tariff recording equipment for telecommunication exchange systems
CH236320D CH236320A (fr) 1938-08-29 1939-07-28 Installation de bureau de télécommunication comprenant un équipement pour l'enregistrement de taxes.
FR858437D FR858437A (fr) 1938-08-29 1939-07-28 équipements pour l'enregistrement de tarifs pour des systèmes de bureaux centraux de télécommunication
NL94905A NL52642C (forum.php) 1938-08-29 1939-08-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2529038A GB520681A (en) 1938-08-29 1938-08-29 Improvements in or relating to tariff recording equipment for telecommunication exchange systems

Publications (1)

Publication Number Publication Date
GB520681A true GB520681A (en) 1940-05-01

Family

ID=8882846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2529038A Expired GB520681A (en) 1938-08-29 1938-08-29 Improvements in or relating to tariff recording equipment for telecommunication exchange systems

Country Status (4)

Country Link
CH (1) CH236320A (forum.php)
FR (1) FR858437A (forum.php)
GB (1) GB520681A (forum.php)
NL (1) NL52642C (forum.php)

Also Published As

Publication number Publication date
FR858437A (fr) 1940-11-25
NL52642C (forum.php) 1942-06-15
CH236320A (fr) 1945-01-31

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