CH283934A - Installation téléphonique. - Google Patents

Installation téléphonique.

Info

Publication number
CH283934A
CH283934A CH283934DA CH283934A CH 283934 A CH283934 A CH 283934A CH 283934D A CH283934D A CH 283934DA CH 283934 A CH283934 A CH 283934A
Authority
CH
Switzerland
Prior art keywords
telephone installation
telephone
installation
Prior art date
Application number
Other languages
English (en)
French (fr)
Inventor
Freese Harry
Elias Claesson Per Harry
Original Assignee
Freese Harry
Elias Claesson Per Harry
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 Freese Harry, Elias Claesson Per Harry filed Critical Freese Harry
Publication of CH283934A publication Critical patent/CH283934A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Push-Button Switches (AREA)
CH283934D 1945-02-20 1946-02-20 Installation téléphonique. CH283934A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE283934X 1945-02-20

Publications (1)

Publication Number Publication Date
CH283934A true CH283934A (fr) 1952-06-30

Family

ID=20307080

Family Applications (1)

Application Number Title Priority Date Filing Date
CH283934D CH283934A (fr) 1945-02-20 1946-02-20 Installation téléphonique.

Country Status (3)

Country Link
BE (1) BE478498A (ru)
CH (1) CH283934A (ru)
GB (1) GB643973A (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937651C (de) * 1952-08-31 1956-01-12 Siemens Ag Fernmelde-, insbesondere Fernsprechanlage mit Waehlerbetrieb
DE972172C (de) * 1953-05-16 1959-06-04 Normalzeit G M B H Schaltungsanordnung fuer Fernsprechanlagen mit einer Stromstosssendevorrichtung

Also Published As

Publication number Publication date
BE478498A (ru)
GB643973A (en) 1950-10-04

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