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CH228776A - Circuit arrangement in telephone systems with main and sub-offices. - Google Patents

Circuit arrangement in telephone systems with main and sub-offices.

Info

Publication number
CH228776A
CH228776A CH228776DA CH228776A CH 228776 A CH228776 A CH 228776A CH 228776D A CH228776D A CH 228776DA CH 228776 A CH228776 A CH 228776A
Authority
CH
Switzerland
Prior art keywords
offices
sub
main
circuit arrangement
telephone systems
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 CH228776A publication Critical patent/CH228776A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
CH228776D 1940-08-31 1942-04-09 Circuit arrangement in telephone systems with main and sub-offices. CH228776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES142115D DE724389C (en) 1940-08-31 1940-08-31 Circuit arrangement for telephone systems with main and sub-offices

Publications (1)

Publication Number Publication Date
CH228776A true CH228776A (en) 1943-09-15

Family

ID=7541713

Family Applications (1)

Application Number Title Priority Date Filing Date
CH228776D CH228776A (en) 1940-08-31 1942-04-09 Circuit arrangement in telephone systems with main and sub-offices.

Country Status (2)

Country Link
CH (1) CH228776A (en)
DE (1) DE724389C (en)

Also Published As

Publication number Publication date
DE724389C (en) 1942-09-04

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