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CH252653A - Circuit arrangement in telecommunications systems. - Google Patents

Circuit arrangement in telecommunications systems.

Info

Publication number
CH252653A
CH252653A CH252653DA CH252653A CH 252653 A CH252653 A CH 252653A CH 252653D A CH252653D A CH 252653DA CH 252653 A CH252653 A CH 252653A
Authority
CH
Switzerland
Prior art keywords
circuit arrangement
telecommunications systems
telecommunications
systems
arrangement
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Standard Telephon Und Radio
Original Assignee
Standard Telephon & Radio Ag
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 Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH252653A publication Critical patent/CH252653A/en

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

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
CH252653D 1941-02-08 1942-10-21 Circuit arrangement in telecommunications systems. CH252653A (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
CH252653A true CH252653A (en) 1948-01-15

Family

ID=23491286

Family Applications (1)

Application Number Title Priority Date Filing Date
CH252653D CH252653A (en) 1941-02-08 1942-10-21 Circuit arrangement in telecommunications systems.

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
NL143044B (en) * 1947-10-29 Matsushita Electric Ind Co Ltd TIME-BASED SYSTEM FOR AN ELECTRON BEAM TUBE.
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
GB550210A (en) 1942-12-29
FR938845A (en) 1948-10-26
US2291040A (en) 1942-07-28

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