FR57207E - Perfectionnements aux bureaux centraux téléphoniques - Google Patents

Perfectionnements aux bureaux centraux téléphoniques

Info

Publication number
FR57207E
FR57207E FR57207DA FR57207E FR 57207 E FR57207 E FR 57207E FR 57207D A FR57207D A FR 57207DA FR 57207 E FR57207 E FR 57207E
Authority
FR
France
Prior art keywords
central telephone
telephone offices
offices
central
telephone
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
Other languages
English (en)
Inventor
William Hatton
Charles De Vriendt
Ladislas Kozma
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR57207E publication Critical patent/FR57207E/fr
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
    • H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
    • 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
    • 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)
  • Ticket-Dispensing Machines (AREA)
  • Meter Arrangements (AREA)
  • Prepayment Telephone Systems (AREA)
FR57207D 1939-01-31 1947-06-06 Perfectionnements aux bureaux centraux téléphoniques Expired FR57207E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB330839A GB527696A (en) 1939-01-31 1939-01-31 Improvements in or relating to telephone exchange systems

Publications (1)

Publication Number Publication Date
FR57207E true FR57207E (fr) 1952-12-23

Family

ID=9755859

Family Applications (4)

Application Number Title Priority Date Filing Date
FR948084D Expired FR948084A (fr) 1939-01-31 1946-11-15 Perfectionnements aux bureaux centraux téléphoniques
FR56818D Expired FR56818E (fr) 1939-01-31 1947-06-06 Perfectionnements aux bureaux centraux téléphoniques
FR57207D Expired FR57207E (fr) 1939-01-31 1947-06-06 Perfectionnements aux bureaux centraux téléphoniques
FR57208D Expired FR57208E (fr) 1939-01-31 1947-06-07 Perfectionnements aux bureaux centraux téléphoniques

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR948084D Expired FR948084A (fr) 1939-01-31 1946-11-15 Perfectionnements aux bureaux centraux téléphoniques
FR56818D Expired FR56818E (fr) 1939-01-31 1947-06-06 Perfectionnements aux bureaux centraux téléphoniques

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR57208D Expired FR57208E (fr) 1939-01-31 1947-06-07 Perfectionnements aux bureaux centraux téléphoniques

Country Status (4)

Country Link
BE (4) BE477240A (fr)
CH (1) CH229751A (fr)
FR (4) FR948084A (fr)
GB (2) GB527696A (fr)

Also Published As

Publication number Publication date
BE477157A (fr)
BE476045A (fr)
FR57208E (fr) 1952-12-23
CH229751A (fr) 1943-11-15
GB536248A (en) 1941-05-08
FR948084A (fr) 1949-07-21
FR56818E (fr) 1952-10-07
BE481458A (fr)
BE477240A (fr)
GB527696A (en) 1940-10-15

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