FR903914A - Switching systems for telephone exchanges - Google Patents

Switching systems for telephone exchanges

Info

Publication number
FR903914A
FR903914A FR903914DA FR903914A FR 903914 A FR903914 A FR 903914A FR 903914D A FR903914D A FR 903914DA FR 903914 A FR903914 A FR 903914A
Authority
FR
France
Prior art keywords
switching systems
telephone exchanges
exchanges
telephone
switching
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)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR903914A publication Critical patent/FR903914A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR903914D 1943-05-04 1944-05-03 Switching systems for telephone exchanges Expired FR903914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL252459X 1943-05-04

Publications (1)

Publication Number Publication Date
FR903914A true FR903914A (en) 1945-10-22

Family

ID=19781159

Family Applications (1)

Application Number Title Priority Date Filing Date
FR903914D Expired FR903914A (en) 1943-05-04 1944-05-03 Switching systems for telephone exchanges

Country Status (2)

Country Link
CH (1) CH252459A (en)
FR (1) FR903914A (en)

Also Published As

Publication number Publication date
CH252459A (en) 1947-12-31

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