FR852648A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
FR852648A
FR852648A FR852648DA FR852648A FR 852648 A FR852648 A FR 852648A FR 852648D A FR852648D A FR 852648DA FR 852648 A FR852648 A FR 852648A
Authority
FR
France
Prior art keywords
telephone systems
telephone
systems
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
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR852648A publication Critical patent/FR852648A/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
    • H04M15/38—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)
FR852648D 1938-04-06 1939-04-05 Telephone systems Expired FR852648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB852648X 1938-04-06

Publications (1)

Publication Number Publication Date
FR852648A true FR852648A (en) 1940-02-28

Family

ID=10587332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR852648D Expired FR852648A (en) 1938-04-06 1939-04-05 Telephone systems

Country Status (1)

Country Link
FR (1) FR852648A (en)

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