CH289545A - Telecommunications installation. - Google Patents

Telecommunications installation.

Info

Publication number
CH289545A
CH289545A CH289545DA CH289545A CH 289545 A CH289545 A CH 289545A CH 289545D A CH289545D A CH 289545DA CH 289545 A CH289545 A CH 289545A
Authority
CH
Switzerland
Prior art keywords
telecommunications installation
telecommunications
installation
Prior art date
Application number
Other languages
French (fr)
Inventor
Telephone Et Radio S Standard
Original Assignee
Standard Telephone & Radio Sa
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 Standard Telephone & Radio Sa filed Critical Standard Telephone & Radio Sa
Publication of CH289545A publication Critical patent/CH289545A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
CH289545D 1940-06-11 1947-03-29 Telecommunications installation. CH289545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB289545X 1940-06-11

Publications (1)

Publication Number Publication Date
CH289545A true CH289545A (en) 1953-03-15

Family

ID=10283886

Family Applications (1)

Application Number Title Priority Date Filing Date
CH289545D CH289545A (en) 1940-06-11 1947-03-29 Telecommunications installation.

Country Status (4)

Country Link
US (1) US2423084A (en)
CH (1) CH289545A (en)
GB (1) GB609474A (en)
NL (1) NL71657C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1762060A1 (en) * 1967-03-31 1970-04-30 Nippon Electric Co Inter-trunk dialing system for a telephone switched network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1963747A (en) * 1934-06-19 Telephone system
FR39002E (en) * 1927-08-09 1931-08-25
US2269462A (en) * 1940-06-21 1942-01-13 Bell Telephone Labor Inc Telephone system
US2276037A (en) * 1940-09-07 1942-03-10 Bell Telephone Labor Inc Telephone system

Also Published As

Publication number Publication date
NL71657C (en)
GB609474A (en) 1948-10-01
US2423084A (en) 1947-07-01

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