CH283266A - Circuit arrangement in a telephone private branch exchange. - Google Patents

Circuit arrangement in a telephone private branch exchange.

Info

Publication number
CH283266A
CH283266A CH283266DA CH283266A CH 283266 A CH283266 A CH 283266A CH 283266D A CH283266D A CH 283266DA CH 283266 A CH283266 A CH 283266A
Authority
CH
Switzerland
Prior art keywords
circuit arrangement
private branch
branch exchange
telephone private
telephone
Prior art date
Application number
Other languages
German (de)
Inventor
Gmbh Telefonbau Und Normalzeit
Original Assignee
Telefonbau & Normalzeit 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 Telefonbau & Normalzeit Gmbh filed Critical Telefonbau & Normalzeit Gmbh
Publication of CH283266A publication Critical patent/CH283266A/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
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
CH283266D 1949-09-19 1950-03-17 Circuit arrangement in a telephone private branch exchange. CH283266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE283266X 1949-09-19

Publications (1)

Publication Number Publication Date
CH283266A true CH283266A (en) 1952-05-31

Family

ID=6045354

Family Applications (1)

Application Number Title Priority Date Filing Date
CH283266D CH283266A (en) 1949-09-19 1950-03-17 Circuit arrangement in a telephone private branch exchange.

Country Status (4)

Country Link
CH (1) CH283266A (en)
FR (1) FR1019957A (en)
GB (1) GB673249A (en)
NL (2) NL152736B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854522A (en) * 1957-04-01 1958-09-30 Gen Dynamics Corp Maximum security automatic telephone system

Also Published As

Publication number Publication date
NL80465C (en)
GB673249A (en) 1952-06-04
NL152736B (en)
FR1019957A (en) 1953-01-30

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