CH237098A - Circuit arrangement in telephone systems with several exchanges in series. - Google Patents

Circuit arrangement in telephone systems with several exchanges in series.

Info

Publication number
CH237098A
CH237098A CH237098DA CH237098A CH 237098 A CH237098 A CH 237098A CH 237098D A CH237098D A CH 237098DA CH 237098 A CH237098 A CH 237098A
Authority
CH
Switzerland
Prior art keywords
series
circuit arrangement
telephone systems
several exchanges
exchanges
Prior art date
Application number
Other languages
German (de)
Inventor
Fides Gesellschaft Beschraenk
Original Assignee
Fides Gmbh
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 Fides Gmbh filed Critical Fides Gmbh
Publication of CH237098A publication Critical patent/CH237098A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
CH237098D 1942-03-11 1943-03-02 Circuit arrangement in telephone systems with several exchanges in series. CH237098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES149342D DE748985C (en) 1942-03-11 1942-03-11 Circuit arrangement for telephone systems with several exchanges in series

Publications (1)

Publication Number Publication Date
CH237098A true CH237098A (en) 1945-03-31

Family

ID=34177150

Family Applications (1)

Application Number Title Priority Date Filing Date
CH237098D CH237098A (en) 1942-03-11 1943-03-02 Circuit arrangement in telephone systems with several exchanges in series.

Country Status (3)

Country Link
CH (1) CH237098A (en)
DE (1) DE748985C (en)
FR (1) FR892103A (en)

Also Published As

Publication number Publication date
DE748985C (en) 1952-05-05
FR892103A (en) 1944-03-29

Similar Documents

Publication Publication Date Title
FR941331A (en) Telephone circuits
CH263436A (en) Circuit arrangement with a call finder.
CH252653A (en) Circuit arrangement in telecommunications systems.
CH267227A (en) Standing telephone handset.
CH283265A (en) Automatic telephone switchboard.
CH243484A (en) Circuit arrangement in telephone systems with several exchanges in series.
CH237098A (en) Circuit arrangement in telephone systems with several exchanges in series.
CH226354A (en) Arrangement in telephone systems.
CH237099A (en) Circuit arrangement in telephone systems with several exchanges that can be switched in series.
CH245547A (en) Circuit arrangement in telephone systems with several exchanges.
CH236137A (en) Circuit arrangement in telephone networks with several exchanges in series.
CH276282A (en) Telecommunications exchange system.
CH233692A (en) Circuit arrangement in telecommunication systems, in particular telephone systems.
CH231156A (en) Circuit arrangement in telephone systems with connecting lines equipped with several branch points.
CH234897A (en) Circuit arrangement in telephone systems with several exchanges that can be switched in series.
CH225671A (en) Circuit arrangement in telephone systems, in particular private branch exchanges, with several centers.
CH241312A (en) Telephone set.
CH237889A (en) Circuit arrangement in telephone systems with main and sub-offices.
CH231803A (en) Circuit arrangement in telephone systems with preset mixed selectors.
CH234468A (en) Circuit arrangement in telephone systems with dialer operation.
CH231157A (en) Circuit arrangement in telephone systems with connecting lines provided with several branch points.
CH236136A (en) Circuit arrangement in telephone systems with separate setting and speech paths.
CH237705A (en) Circuit arrangement for the matching setting of locally separated switchgear in telecommunications, in particular telephone systems with main and sub-offices.
CH238420A (en) Test circuitry in electrical telecommunications systems.
CH244726A (en) Circuit arrangement in telephone subscriber sets.