FR57780E - Systèmes de commutation téléphonique - Google Patents

Systèmes de commutation téléphonique

Info

Publication number
FR57780E
FR57780E FR57780DA FR57780E FR 57780 E FR57780 E FR 57780E FR 57780D A FR57780D A FR 57780DA FR 57780 E FR57780 E FR 57780E
Authority
FR
France
Prior art keywords
telephone switching
switching systems
systems
telephone
switching
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
Esmond Philip Goodwin Wright
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 FR57780E publication Critical patent/FR57780E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • 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
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/62—Keyboard equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
FR57780D 1946-03-09 1947-10-11 Systèmes de commutation téléphonique Expired FR57780E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB285306X 1946-03-09

Publications (1)

Publication Number Publication Date
FR57780E true FR57780E (fr) 1953-09-09

Family

ID=10277091

Family Applications (4)

Application Number Title Priority Date Filing Date
FR962115D Expired FR962115A (fr) 1946-03-09
FR57780D Expired FR57780E (fr) 1946-03-09 1947-10-11 Systèmes de commutation téléphonique
FR66206D Expired FR66206E (fr) 1946-03-09 1947-10-17 Systèmes de commutation téléphonique
FR66301D Expired FR66301E (fr) 1946-03-09 1947-10-23 Systèmes de commutation téléphonique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR962115D Expired FR962115A (fr) 1946-03-09

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR66206D Expired FR66206E (fr) 1946-03-09 1947-10-17 Systèmes de commutation téléphonique
FR66301D Expired FR66301E (fr) 1946-03-09 1947-10-23 Systèmes de commutation téléphonique

Country Status (7)

Country Link
US (1) US2633501A (fr)
BE (4) BE480488A (fr)
CH (4) CH291943A (fr)
ES (1) ES179632A1 (fr)
FR (4) FR57780E (fr)
GB (4) GB642541A (fr)
NL (2) NL72119C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013410B (de) * 1954-02-03 1957-08-08 Ver Leichtmetallwerke Gmbh Eckverbindung fuer Hohlprofile, insbesondere fuer Fenster- und Tuerrahmen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1883589A (en) * 1930-12-18 1932-10-18 Associated Electric Lab Inc Telephone system
US2382893A (en) * 1944-08-18 1945-08-14 Bell Telephone Labor Inc Telephone system

Also Published As

Publication number Publication date
BE476939A (fr)
GB642542A (en) 1950-09-06
US2633501A (en) 1953-03-31
GB642528A (en) 1950-09-06
FR66206E (fr) 1956-06-05
CH289546A (fr) 1953-03-15
FR66301E (fr) 1956-06-29
BE476759A (fr)
BE480488A (fr)
ES179632A1 (es) 1947-10-16
GB642527A (en) 1950-09-06
NL72119C (fr)
GB642541A (en) 1950-09-06
FR962115A (fr) 1950-06-02
CH291943A (fr) 1953-07-15
BE476048A (fr)
CH285306A (fr) 1952-08-31
NL75429C (fr)
CH296198A (fr) 1954-01-31

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