FR938845A - Improvements to switching systems particularly suitable for automatic telephony - Google Patents

Improvements to switching systems particularly suitable for automatic telephony

Info

Publication number
FR938845A
FR938845A FR938845DA FR938845A FR 938845 A FR938845 A FR 938845A FR 938845D A FR938845D A FR 938845DA FR 938845 A FR938845 A FR 938845A
Authority
FR
France
Prior art keywords
particularly suitable
switching systems
systems particularly
automatic telephony
telephony
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR938845A publication Critical patent/FR938845A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
FR938845D 1941-02-08 1946-11-27 Improvements to switching systems particularly suitable for automatic telephony Expired FR938845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US377990A US2291040A (en) 1941-02-08 1941-02-08 Switching system

Publications (1)

Publication Number Publication Date
FR938845A true FR938845A (en) 1948-10-26

Family

ID=23491286

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938845D Expired FR938845A (en) 1941-02-08 1946-11-27 Improvements to switching systems particularly suitable for automatic telephony

Country Status (4)

Country Link
US (1) US2291040A (en)
CH (1) CH252653A (en)
FR (1) FR938845A (en)
GB (1) GB550210A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419540A (en) * 1943-08-28 1947-04-29 Int Standard Electric Corp Telecommunication switching system
FR973819A (en) * 1947-10-29 1951-02-15
GB668521A (en) * 1947-11-11 1952-03-19 Standard Telephones Cables Ltd Improvements in or relating to electronic devices
US2542672A (en) * 1948-10-27 1951-02-20 Bell Telephone Labor Inc Coordinate selecting and lockout circuit
BE498266A (en) * 1949-09-23
US2607891A (en) * 1950-06-10 1952-08-19 Bell Telephone Labor Inc Translating circuits utilizing glow discharge devices
GB744126A (en) * 1950-10-25 1956-02-01 Automatic Telephone & Elect Improvements in or relating to telecommunication systems
BE519952A (en) * 1952-05-16
GB2394987B (en) * 2003-07-22 2004-09-29 Metalfit Company Ltd A gravitationally locking-and-releasing hinge for interchangably folding legs for furniture, for example guest beds

Also Published As

Publication number Publication date
US2291040A (en) 1942-07-28
CH252653A (en) 1948-01-15
GB550210A (en) 1942-12-29

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