FR947454A - Dispositif de transmission électrique - Google Patents

Dispositif de transmission électrique

Info

Publication number
FR947454A
FR947454A FR947454DA FR947454A FR 947454 A FR947454 A FR 947454A FR 947454D A FR947454D A FR 947454DA FR 947454 A FR947454 A FR 947454A
Authority
FR
France
Prior art keywords
transmission device
electric transmission
electric
transmission
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)
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
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 Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Application granted granted Critical
Publication of FR947454A publication Critical patent/FR947454A/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
    • H04M15/08—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)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
FR947454D 1946-07-25 1947-06-02 Dispositif de transmission électrique Expired FR947454A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22136/46A GB615271A (en) 1946-07-25 1946-07-25 Improvements in or relating to electrical signalling systems

Publications (1)

Publication Number Publication Date
FR947454A true FR947454A (fr) 1949-07-04

Family

ID=10174476

Family Applications (1)

Application Number Title Priority Date Filing Date
FR947454D Expired FR947454A (fr) 1946-07-25 1947-06-02 Dispositif de transmission électrique

Country Status (5)

Country Link
US (1) US2547804A (fr)
BE (1) BE473455A (fr)
DE (1) DE826164C (fr)
FR (1) FR947454A (fr)
GB (1) GB615271A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE500868A (fr) * 1950-01-28
US2691151A (en) * 1950-05-22 1954-10-05 Products & Licensing Corp Multiple switching systems
US2963553A (en) * 1954-03-17 1960-12-06 Douglas L White System for identifying telephone lines
FR1212783A (fr) * 1958-07-11 1960-03-25 Constr Telephoniques Perfectionnements aux dispositifs d'identification

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1864553A (en) * 1930-12-06 1932-06-28 Bell Telephone Labor Inc Telephone system
US1846261A (en) * 1931-04-11 1932-02-23 American Telephone & Telegraph Telephone system
GB475419A (en) * 1936-05-18 1937-11-18 Automatic Electric Co Ltd Improvements in or relating to telephone systems
US2077537A (en) * 1936-05-19 1937-04-20 American Telephone & Telegraph System for tracing telephone calls
US2222099A (en) * 1938-11-07 1940-11-19 Fides Ges Fur Verwaltung Und V Telephone system
BE438173A (fr) * 1939-03-02
NL63940C (fr) * 1940-03-23
US2270246A (en) * 1940-09-20 1942-01-20 Bell Telephone Labor Inc Telephone system
US2252766A (en) * 1940-10-17 1941-08-19 Bell Telephone Labor Inc Signaling system
NL57799C (nl) * 1941-03-07 1945-09-15 Bell Telephone Mfg Schakeling voor het besturen van een apparatuur in seinstelsels, in het bijzonder van de instelling van schakelaars in centrales voor telefoonstelsels
NL58889C (fr) * 1941-04-25
BE477655A (fr) * 1941-08-15
BE447417A (fr) * 1941-08-21
GB568229A (fr) * 1942-12-21 1900-01-01
GB614177A (en) * 1946-05-25 1948-12-10 Automatic Telephone & Elect Improvements in or relating to electrical signalling systems

Also Published As

Publication number Publication date
BE473455A (fr)
DE826164C (de) 1951-12-27
GB615271A (en) 1949-01-04
US2547804A (en) 1951-04-03

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