CH384042A - Electromagnetic-optical indicator, in particular for telephone exchange systems - Google Patents

Electromagnetic-optical indicator, in particular for telephone exchange systems

Info

Publication number
CH384042A
CH384042A CH769061A CH769061A CH384042A CH 384042 A CH384042 A CH 384042A CH 769061 A CH769061 A CH 769061A CH 769061 A CH769061 A CH 769061A CH 384042 A CH384042 A CH 384042A
Authority
CH
Switzerland
Prior art keywords
electromagnetic
telephone exchange
exchange systems
optical indicator
indicator
Prior art date
Application number
CH769061A
Other languages
German (de)
Inventor
Bianco Bruno Dal
Scata Mario
Steinbach Heinz
Original Assignee
Standard Telephon & Radio Ag
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 Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH384042A publication Critical patent/CH384042A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electromagnets (AREA)
CH769061A 1960-07-01 1961-06-30 Electromagnetic-optical indicator, in particular for telephone exchange systems CH384042A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ18379A DE1116733B (en) 1960-07-01 1960-07-01 Electromagnetic-optical indicator, especially for telephone exchanges

Publications (1)

Publication Number Publication Date
CH384042A true CH384042A (en) 1964-11-15

Family

ID=7199787

Family Applications (1)

Application Number Title Priority Date Filing Date
CH769061A CH384042A (en) 1960-07-01 1961-06-30 Electromagnetic-optical indicator, in particular for telephone exchange systems

Country Status (2)

Country Link
CH (1) CH384042A (en)
DE (1) DE1116733B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1272381B (en) * 1961-11-07 1968-07-11 Int Standard Electric Corp Electromagnetic-optical indicator, especially for telephone switching systems
DE1192265B (en) * 1962-03-12 1965-05-06 Siemens Ag Circuit breaker for telecommunication, especially telephone systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2359546A (en) * 1943-02-05 1944-10-03 Int Standard Electric Corp Magnetic signal

Also Published As

Publication number Publication date
DE1116733B (en) 1961-11-09

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