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CH309049A - 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
CH309049A
CH309049A CH309049DA CH309049A CH 309049 A CH309049 A CH 309049A CH 309049D A CH309049D A CH 309049DA CH 309049 A CH309049 A CH 309049A
Authority
CH
Switzerland
Prior art keywords
offices
sub
main
circuit arrangement
telephone systems
Prior art date
Application number
Other languages
German (de)
Inventor
Patent-Verwaltungs-Gm Licentia
Original Assignee
Licentia 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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of CH309049A publication Critical patent/CH309049A/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)
  • Monitoring And Testing Of Exchanges (AREA)
  • Radio Relay Systems (AREA)
CH309049D 1951-07-03 1952-06-23 Circuit arrangement in telephone systems with main and sub-offices. CH309049A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE309049X 1951-07-03
DE100951X 1951-09-10

Publications (1)

Publication Number Publication Date
CH309049A true CH309049A (en) 1955-08-15

Family

ID=25750383

Family Applications (1)

Application Number Title Priority Date Filing Date
CH309049D CH309049A (en) 1951-07-03 1952-06-23 Circuit arrangement in telephone systems with main and sub-offices.

Country Status (5)

Country Link
BE (1) BE512590A (en)
CH (1) CH309049A (en)
FR (1) FR1067876A (en)
GB (1) GB756323A (en)
NL (2) NL89646C (en)

Also Published As

Publication number Publication date
BE512590A (en)
GB756323A (en) 1956-09-05
NL170773B (en)
NL89646C (en)
FR1067876A (en) 1954-06-21

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