CH439403A - Switchboard for telephone system - Google Patents

Switchboard for telephone system

Info

Publication number
CH439403A
CH439403A CH164666A CH164666A CH439403A CH 439403 A CH439403 A CH 439403A CH 164666 A CH164666 A CH 164666A CH 164666 A CH164666 A CH 164666A CH 439403 A CH439403 A CH 439403A
Authority
CH
Switzerland
Prior art keywords
switchboard
telephone system
telephone
Prior art date
Application number
CH164666A
Other languages
French (fr)
Inventor
Paul Barbier Andre
Original Assignee
Paul Barbier Andre
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 Paul Barbier Andre filed Critical Paul Barbier Andre
Publication of CH439403A publication Critical patent/CH439403A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0289—Telephone sets for operators

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Meter Arrangements (AREA)
  • Exchange Systems With Centralized Control (AREA)
CH164666A 1965-02-05 1966-02-02 Switchboard for telephone system CH439403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR4628A FR1443914A (en) 1965-02-05 1965-02-05 Switchboard with keys

Publications (1)

Publication Number Publication Date
CH439403A true CH439403A (en) 1967-07-15

Family

ID=8570235

Family Applications (1)

Application Number Title Priority Date Filing Date
CH164666A CH439403A (en) 1965-02-05 1966-02-02 Switchboard for telephone system

Country Status (3)

Country Link
CH (1) CH439403A (en)
ES (1) ES322632A1 (en)
FR (1) FR1443914A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522227A1 (en) * 1982-02-25 1983-08-26 Esteve Salvador LIGHT RECEIVER FOR TELEPHONE CALL STATUS AND SIGNAL TRANSMITTER SUITABLE FOR THIS USE

Also Published As

Publication number Publication date
FR1443914A (en) 1966-07-01
ES322632A1 (en) 1966-07-16

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