FR1013615A - Telecommunications systems comprising grouped lines called pbx - Google Patents

Telecommunications systems comprising grouped lines called pbx

Info

Publication number
FR1013615A
FR1013615A FR1013615DA FR1013615A FR 1013615 A FR1013615 A FR 1013615A FR 1013615D A FR1013615D A FR 1013615DA FR 1013615 A FR1013615 A FR 1013615A
Authority
FR
France
Prior art keywords
telecommunications systems
lines called
called pbx
grouped lines
grouped
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Martinus Den Hertog
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1013615A publication Critical patent/FR1013615A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Interface Circuits In Exchanges (AREA)
FR1013615D 1949-02-09 1950-02-09 Telecommunications systems comprising grouped lines called pbx Expired FR1013615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL678319X 1949-02-09

Publications (1)

Publication Number Publication Date
FR1013615A true FR1013615A (en) 1952-07-31

Family

ID=19802353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1013615D Expired FR1013615A (en) 1949-02-09 1950-02-09 Telecommunications systems comprising grouped lines called pbx

Country Status (4)

Country Link
BE (1) BE493791A (en)
FR (1) FR1013615A (en)
GB (1) GB678319A (en)
NL (2) NL72168C (en)

Also Published As

Publication number Publication date
BE493791A (en)
NL144773B (en)
GB678319A (en) 1952-09-03
NL72168C (en)

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