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FR778440A - Switching device for automatic telephone systems - Google Patents

Switching device for automatic telephone systems

Info

Publication number
FR778440A
FR778440A FR778440DA FR778440A FR 778440 A FR778440 A FR 778440A FR 778440D A FR778440D A FR 778440DA FR 778440 A FR778440 A FR 778440A
Authority
FR
France
Prior art keywords
switching device
telephone systems
automatic telephone
automatic
systems
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR778440A publication Critical patent/FR778440A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
FR778440D 1933-09-08 1934-09-08 Switching device for automatic telephone systems Expired FR778440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE439067X 1933-09-08

Publications (1)

Publication Number Publication Date
FR778440A true FR778440A (en) 1935-03-15

Family

ID=20309953

Family Applications (1)

Application Number Title Priority Date Filing Date
FR778440D Expired FR778440A (en) 1933-09-08 1934-09-08 Switching device for automatic telephone systems

Country Status (2)

Country Link
FR (1) FR778440A (en)
GB (1) GB439067A (en)

Also Published As

Publication number Publication date
GB439067A (en) 1935-11-28

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